Can You Donate Plasma With Diabetes? Type 1, Type 2 & Insulin Guide

Diabetes affects over 37 million Americans, and many of them wonder whether they can still earn money through plasma donation. The answer is not a simple yes or no. It depends on your diabetes type, the medications you take, how well your blood sugar is controlled, and whether you have developed any complications from the condition. This comprehensive guide covers every angle of diabetic plasma donation so you can walk into a center knowing exactly where you stand and what to expect during screening.

The short version: if you manage Type 2 diabetes with pills like metformin and your blood sugar is reasonably controlled, you can almost certainly donate plasma. If you inject insulin for any reason, whether Type 1 or Type 2, most centers will turn you away. The rest of this guide explains exactly why, which medications are acceptable, how to prepare for donation day, and what complications might disqualify you even if you meet the basic criteria.

Type 1 vs Type 2 Diabetes: Eligibility Differences

Plasma centers draw a sharp line between Type 1 and Type 2 diabetes. The distinction matters because these two conditions involve fundamentally different risks during the donation process, and the treatments they require place donors in very different safety categories.

Type 2 Diabetes: Usually Accepted

Type 2 diabetes is a metabolic condition where your body becomes resistant to insulin or does not produce enough of it. This is by far the more common form, accounting for roughly 90-95% of all diabetes cases. Most people with Type 2 manage their condition with oral medications, dietary changes, and exercise. Because these donors typically do not inject insulin, they are accepted at the vast majority of plasma collection centers across the country.

To be eligible with Type 2 diabetes, you generally need to meet all of the following criteria:

• Well-controlled blood sugar: Your glucose levels should be stable and within a manageable range on donation day
• No insulin injections: You manage your condition with oral medications, diet, exercise, or non-insulin injectables only
• No serious complications: No kidney disease, severe peripheral neuropathy, diabetic retinopathy, or active diabetic wounds
• General health requirements met: You must still pass the standard plasma screening including weight (minimum 110 lbs), blood pressure, protein levels, and hematocrit
• Stable medication regimen: No major recent changes to your diabetes treatment plan

Type 1 Diabetes: Usually Deferred

Type 1 diabetes is an autoimmune condition where the immune system attacks and destroys the insulin-producing beta cells in the pancreas. People with Type 1 produce little to no insulin naturally and require daily insulin injections or an insulin pump to survive. This absolute dependence on exogenous insulin is the primary reason most plasma centers defer Type 1 diabetics from donating.

The deferral is not a judgment on your overall health, your ability to manage your condition, or your character. It is a safety-based policy rooted in specific medical risks that insulin use introduces during the plasma collection process. Even if you have excellent A1C numbers and use a continuous glucose monitor with an insulin pump, the policy at most major chains remains the same.

Why Insulin Use Matters for Plasma Donation

If you use insulin injections of any kind, you will most likely be deferred from donating plasma at every major center in the United States. This is not an arbitrary rule. There are three specific, well-documented medical reasons why insulin use creates unacceptable risks in the plasma donation setting.

1. Injection Site Infection Risk

Plasma donation involves inserting a large-gauge needle into a vein in your arm. The needle stays in place for 45 to 90 minutes while your blood is drawn, the plasma is separated via centrifuge, and the remaining blood components are returned to your body. For people who also inject insulin multiple times daily, the cumulative needle exposure significantly increases the risk of localized infections, vein scarring, and complications at the venipuncture site.

There is also a practical screening concern: center staff need to verify that any injection marks on the body are from legitimate medical use and not from illicit drug use. Multiple injection sites create additional screening burden, and centers prefer to minimize these complications by deferring insulin-dependent donors entirely.

2. Blood Sugar Instability During the Donation Process

The plasma donation process lasts between 45 and 90 minutes depending on your body weight and the volume of plasma being collected. During this time, several things happen that can affect blood sugar in unpredictable ways:

• Saline return: When the plasma is separated from your blood, the remaining components (red blood cells, white blood cells, platelets) are mixed with sterile saline solution and returned to your body. This saline dilutes blood glucose temporarily and can cause readings to drop
• Stress response: The body may release cortisol and adrenaline during the donation process, particularly for newer donors or those who are anxious. These stress hormones raise blood sugar
• Fasting effects: Some donors skip meals before donation or eat too little, causing blood sugar to fall before the process even starts
• Duration and fluid shifts: Sitting still for an extended period while your blood volume temporarily decreases and then is restored with saline can affect how your body processes glucose
• Temperature changes: The returned saline is often cooler than body temperature, which some donors report causes mild chills. The body's thermoregulation response can indirectly affect metabolism

For insulin-dependent diabetics, these fluctuations are substantially more dangerous. Their bodies cannot self-regulate glucose levels the way a non-diabetic body or an oral-medication-managed body can. A sudden drop in blood sugar (hypoglycemia) during donation could cause dizziness, fainting, seizures, or in extreme cases, loss of consciousness. The center staff, while trained in basic emergency response, are phlebotomists and technicians, not endocrinologists. They are not equipped to manage diabetic crises as a routine part of their workflow.

3. Plasma Quality and Pharmaceutical Concerns

Donated plasma is not used directly for transfusions in most cases. Instead, it is sold to pharmaceutical manufacturers who process it into life-saving therapies for patients with immune deficiencies, hemophilia, clotting disorders, and other serious conditions. These manufacturers must meet strict quality standards set by the FDA and international regulatory bodies.

Exogenous insulin in the bloodstream can affect the composition and protein profile of the donated plasma. While the exact impact depends on the type and dose of insulin, plasma collection companies prefer to avoid any variables that could complicate their manufacturing processes or compromise the quality of the end products that patients depend on.

Diabetes Medications That Are Accepted for Plasma Donation

Not all diabetes medications are treated the same when it comes to plasma donation eligibility. The critical distinction is between oral medications (pills), non-insulin injectables, and insulin itself. Understanding which category your medications fall into can save you a wasted trip to the center.

Oral Medications: Accepted at All Major Centers

If you take any of these medications alone or in combination, you should have no medication-related barriers to donating plasma. The key word is "oral." These are all pills that you swallow, and they work by helping your body use its own insulin more effectively or by reducing glucose production in the liver.

Non-Insulin Injectables: Usually Accepted

This category is where many donors get confused, and where unnecessary deferrals sometimes happen due to screening staff not recognizing the difference between insulin and GLP-1 receptor agonists. Several newer diabetes and weight-loss medications are injected with a pen device but are categorically NOT insulin. These medications help your pancreas produce its own insulin more effectively in response to meals, slow stomach emptying, and reduce appetite.

Insulin and Plasma Donation: The Full Picture

Insulin is the bright-line dividing factor for diabetic plasma donation eligibility. If you inject insulin of any type, whether rapid-acting like Humalog or NovoLog, long-acting like Lantus, Levemir, or Tresiba, or use an insulin pump, you will almost certainly be deferred at every major U.S. plasma center.

Why the Policy Is So Strict

• FDA guidance: The FDA's donor eligibility requirements encourage plasma collection facilities to exercise caution with insulin-dependent donors. While the FDA does not explicitly ban diabetic donors, its guidance on donor safety and product quality leads centers to adopt conservative policies
• Liability exposure: If an insulin-dependent donor experiences a hypoglycemic seizure or loss of consciousness during or after donation, the center faces significant legal and financial liability. Insurance policies for plasma centers often reflect this risk
• Standardized operations: Large chains like CSL Plasma, BioLife, and Octapharma operate hundreds of locations with standardized protocols. Allowing case-by-case exceptions for insulin users would create inconsistency and increase risk across their entire network
• Staff training limitations: Plasma center staff are trained in phlebotomy, machine operation, and basic emergency response. They are not trained to manage diabetic emergencies as part of their standard workflow, and adding this capability would require significant investment in training and equipment

Exceptions and Edge Cases

Some donors report being accepted at certain locations despite using insulin. These cases are rare and typically involve one of the following scenarios:

• Well-controlled Type 2 diabetics who use a small dose of long-acting basal insulin (like Lantus or Tresiba) as a supplement to their oral medications, and whose center medical director agrees to an exception
• Independent or smaller plasma centers that operate outside the major chain networks and evaluate donors on a case-by-case basis
• Centers in areas with very high demand for plasma donors, where the medical director may apply more flexible criteria

If you are insulin-dependent and want to explore your options, call the center's medical director or physician on staff before making the trip. Explain your specific situation, insulin type and dose, A1C level, and overall health. This five-minute phone call can save you a wasted two-hour visit and potential frustration.

Blood Sugar Requirements at Screening

Every plasma donation begins with a health screening. For diabetic donors, this screening takes on added importance because your blood sugar status when you arrive at the center can determine whether you donate that day or get sent home, even if you are generally eligible on paper.

What the Standard Screening Checks

The pre-donation screening at every plasma center includes the following measurements:

• Blood pressure: Must be within acceptable limits, typically under 180/100 mmHg
• Pulse: Between 50 and 100 beats per minute at rest
• Temperature: Under 99.5°F (37.5°C)
• Hematocrit or hemoglobin: Must meet minimum thresholds to ensure you have enough red blood cells
• Total protein: Must fall within an acceptable range, as plasma is largely composed of protein
• Weight: Minimum 110 lbs (50 kg), which determines how much plasma can be collected
• Health questionnaire: A detailed set of questions covering your medical history, medications, recent travel, sexual history, and more

How Blood Sugar Affects Your Screening

Most plasma centers do not perform a formal fasting blood glucose test or A1C check as part of the standard screening process. However, they will defer you for the day if you display signs of uncontrolled blood sugar, including:

• Symptoms of hyperglycemia (high blood sugar): Excessive thirst, frequent urination, blurred vision, fruity breath odor, fatigue, or confusion
• Symptoms of hypoglycemia (low blood sugar): Shakiness, cold sweats, rapid heartbeat, dizziness, irritability, or difficulty concentrating
• General malaise: If you don't look or feel well during the screening, the nurse will defer you regardless of the specific cause. Centers err on the side of caution

Some centers, particularly on your first visit, may perform a finger-stick glucose reading as part of the physical examination. While there is no universally published blood sugar cutoff number, donor reports and industry guidelines suggest the following general thresholds:

Managing Blood Sugar Around Donation Days

If you have Type 2 diabetes and are eligible to donate, managing your blood sugar around donation days is the single most important thing you can do to ensure smooth, successful sessions. The plasma donation process puts your body under mild physiological stress, and smart preparation makes the difference between a successful donation and a frustrating deferral.

The Day Before Donation

• Drink extra water: Aim for 64-80 ounces throughout the day. Dehydration concentrates blood sugar, makes veins harder to access, and slows the donation process. If you take an SGLT2 inhibitor like Jardiance or Farxiga, which increases urination, you need even more water
• Eat balanced meals: Focus on complex carbohydrates (brown rice, sweet potatoes, whole grain bread), lean protein (chicken, fish, eggs, beans), and healthy fats (avocado, nuts, olive oil). Avoid excessive sugar, processed carbs, fast food, and anything that causes your blood sugar to spike and crash
• Take all medications as prescribed: Do not skip or adjust your diabetes medication in preparation for donation. Your body needs consistent glucose management
• Get adequate sleep: Poor sleep raises cortisol, which in turn raises blood sugar. Aim for 7-8 hours the night before donation
• Avoid alcohol: Alcohol affects blood sugar unpredictably and causes dehydration. Skip it entirely the day before you plan to donate

The Morning of Donation

• Eat a balanced breakfast 2-3 hours before: Eggs with whole grain toast and a piece of fruit is an ideal combination. Greek yogurt with nuts and berries also works well. Avoid sugary cereals, pastries, energy drinks, or large amounts of fruit juice
• Take your diabetes medication on schedule: With your breakfast, exactly as you normally would on any other day
• Check your blood sugar at home before you leave: Know your number before driving to the center. If it is below 80 or above 180 mg/dL, consider rescheduling for a day when your levels are more stable
• Drink 16-20 oz of water: In the 1-2 hours before your scheduled appointment time
• Pack your supplies: Bring your glucose monitor, glucose tablets, a diabetic-friendly snack, and a water bottle

During the Donation

• Stay calm and relaxed: Anxiety triggers cortisol release, which raises blood sugar. Bring headphones, a podcast, a book, or something to keep you mentally occupied and relaxed during the 45-90 minute process
• Squeeze the stress ball consistently: This keeps blood flowing through the venipuncture site, speeds up the collection, and gives you something to focus on
• Alert staff immediately if you feel off: Any shakiness, dizziness, cold sweats, confusion, nausea, or rapid heartbeat should be reported to the technician right away. Do not wait to see if it passes

After Donation

• Eat a snack immediately: The center provides free snacks (usually cookies, crackers, and juice), but bring your own diabetic-friendly options like nuts, cheese sticks, protein bars, or peanut butter crackers. Standard center snacks are often high in simple sugars
• Check your blood sugar within 30 minutes: Compare to your pre-donation reading and note any significant change
• Continue hydrating: Drink at least 24-32 oz of water over the next 2-4 hours to replace the fluid volume your body lost
• Monitor for delayed effects: Some donors, especially those with diabetes, notice blood sugar changes several hours after donation. Keep your glucose monitor handy for the rest of the day
• Avoid strenuous exercise: Light walking is fine, but skip the gym, running, or heavy lifting on donation day. Both exercise and donation can lower blood sugar, and the combined effect may be more than your body expects

Diabetic Complications That Disqualify You

Even if you have Type 2 diabetes managed entirely with oral medications and your blood sugar is well-controlled, certain long-term complications of diabetes can make you ineligible for plasma donation. These complications indicate that the disease has progressed to a point where the donation process could be unsafe for you or could compromise the quality of your plasma.

Diabetic Neuropathy

Peripheral neuropathy, which is nerve damage caused by prolonged exposure to high blood sugar, affects the extremities, particularly the feet and hands. This condition is relevant to plasma donation for several reasons:

• You may not be able to feel pain or discomfort at the needle insertion site, which could mask a problem like infiltration (the needle slipping out of the vein) or hematoma formation
• Peripheral neuropathy signals that your diabetes has been poorly controlled over an extended period, even if your current A1C looks acceptable
• Autonomic neuropathy, which affects the nerves controlling involuntary functions like blood pressure and heart rate, can cause dangerous blood pressure drops during the donation process when your fluid volume changes

Diabetic Retinopathy

Damage to the tiny blood vessels in the retina is one of the hallmark complications of long-term diabetes. Plasma centers may defer donors with diagnosed retinopathy because:

• It indicates systemic microvascular damage that extends beyond the eyes, suggesting fragile blood vessels throughout the body
• The blood pressure and fluid volume changes that occur during plasma donation could theoretically stress already-compromised blood vessels
• Retinopathy is a marker of the duration and severity of poorly controlled diabetes

Diabetic Kidney Disease (Nephropathy)

Kidney damage from diabetes is perhaps the most significant disqualifying complication because the kidneys play a direct role in the physiological processes affected by plasma donation:

• The kidneys regulate fluid balance in the body, which is stressed when plasma is removed and saline is returned
• Impaired kidney function affects serum protein levels. Plasma donors must meet minimum total protein thresholds, and diabetic kidney disease often causes protein to leak into the urine (proteinuria), lowering blood protein levels below the required minimums
• The saline solution returned to your body during the apheresis process adds extra fluid that compromised kidneys may struggle to filter and process efficiently
• Advanced kidney disease may affect your hematocrit levels and overall blood composition in ways that make donation unsafe

Other Disqualifying Complications

• Diabetic foot ulcers or active wounds: These indicate poor circulation, impaired wound healing, and increased infection risk. Any active, open wound is a deferral regardless of cause
• Recent diabetic ketoacidosis (DKA): A DKA episode in the recent past signals dangerously unstable diabetes and is an automatic deferral until well-resolved and documented as stable
• Cardiovascular disease related to diabetes: History of heart attack, stroke, peripheral artery disease, or congestive heart failure, whether diabetes-related or not, will typically result in deferral
• Gastroparesis: Diabetic stomach paralysis can cause unpredictable absorption of food and oral medications, leading to erratic blood sugar levels that make safe donation impossible to guarantee

10 Essential Tips for Diabetic Plasma Donors

If you have Type 2 diabetes and meet the eligibility requirements, these practical tips will help you have successful, safe, and comfortable donation sessions every time.

Pre-Diabetes and Plasma Donation

Pre-diabetes is a condition where blood sugar levels are higher than normal but have not yet reached the threshold for a Type 2 diabetes diagnosis. It is defined as an A1C between 5.7% and 6.4%, or a fasting blood glucose of 100-125 mg/dL. An estimated 96 million American adults have pre-diabetes, and many of them are unaware of their condition.

Can You Donate Plasma With Pre-Diabetes?

Yes, without reservation. Pre-diabetes does not disqualify you from donating plasma at any major center. You are not taking insulin, your blood sugar levels are only mildly elevated above the normal range, and you have not developed the complications associated with full-blown diabetes. From a plasma center's perspective, you are functionally a normal, healthy donor.

In many cases, people with pre-diabetes are not even aware of their status because symptoms are minimal or nonexistent. If you have been told you have pre-diabetes and are otherwise healthy:

• You do not need to specifically volunteer this information unless the questionnaire asks about it directly
• Your screening vitals will almost certainly be within normal ranges
• No medications commonly used to manage pre-diabetes will disqualify you from donating
• Focus on the same preparation any donor should follow: hydration, balanced nutrition, and adequate rest before donation day

If You Take Metformin for Pre-Diabetes

Some physicians prescribe metformin as a preventive measure for patients with pre-diabetes, particularly those who are at high risk of progressing to Type 2 diabetes. Taking metformin for pre-diabetes does not affect your plasma donation eligibility in any way. Metformin is universally accepted at all major plasma centers regardless of whether it is prescribed for pre-diabetes, Type 2 diabetes, polycystic ovary syndrome (PCOS), or any other condition. Simply list it on your medication questionnaire and you will proceed through screening as normal.

Gestational Diabetes and Plasma Donation

Gestational diabetes develops during pregnancy when hormonal changes cause insulin resistance. It affects approximately 2-10% of pregnancies in the United States and typically resolves after delivery when hormone levels return to normal.

Key Points for Women With a History of Gestational Diabetes

• Resolved gestational diabetes: If you had gestational diabetes during a previous pregnancy but your blood sugar returned to normal after delivery, you are fully eligible to donate plasma. There are no restrictions, deferrals, or special requirements related to a past history of gestational diabetes
• Currently pregnant: You cannot donate plasma while pregnant, regardless of whether you have gestational diabetes or not. All major plasma centers defer pregnant women for the duration of the pregnancy and typically for six weeks postpartum. This policy is about pregnancy itself, not diabetes
• Post-pregnancy with persistent elevated blood sugar: If your blood sugar did not return to normal after delivery and your doctor subsequently diagnosed you with Type 2 diabetes, you should follow the Type 2 diabetes guidelines outlined earlier in this article. Your eligibility depends on your current treatment plan and whether it includes insulin
• Future risk awareness: Women who experienced gestational diabetes have a significantly higher lifetime risk of developing Type 2 diabetes, estimated at 50% within 5-10 years after the affected pregnancy. If you are donating plasma regularly, stay current with your annual physicals and blood sugar screenings so you can update your health questionnaire accurately if your status changes

Center-by-Center Policies for Diabetic Donors

Each major plasma collection company maintains its own medical guidelines, though the general principles are remarkably consistent across the industry. The table below summarizes what you can expect at each major chain.

What to Bring to Your First Visit as a Diabetic Donor

If this is your first time visiting a plasma center and you have diabetes, bring the following items to make the screening process as smooth as possible:

• Complete list of current medications: Include drug names (brand and generic), dosages, frequency, and the name of your prescribing doctor
• Your diabetes type clearly identified: Know whether you are Type 1 or Type 2, and be prepared to explain this clearly
• Most recent A1C result (if available): This is not required at most centers, but having it readily available demonstrates that your diabetes is well-managed and can help in borderline situations
• Doctor's note (optional but helpful): Some centers accept or even appreciate a brief letter from your physician confirming your diabetes is well-controlled and that you are cleared for plasma donation. This is not a standard requirement but can be particularly useful if you take a GLP-1 injectable or any medication that might initially raise questions
• Standard first-visit requirements: Valid government-issued photo ID, proof of current address (utility bill, bank statement, or lease), and your Social Security card or equivalent documentation

Next Steps for Diabetic Plasma Donors

• Verify your eligibility: Call your nearest plasma center with your specific diabetes type and medication list before making the trip.
• Talk to your doctor: Ask your physician whether plasma donation is appropriate given your current diabetes management and overall health.
• Prepare for donation day: Follow the 10-tip diabetic donor checklist above to avoid same-day deferrals from blood sugar issues or dehydration.
• Track your sessions: Log your blood sugar before and after each donation to identify patterns and optimize your routine over time.
• Calculate your potential earnings: Use our Plasma Pay Calculator to estimate how much you can earn with regular donations at your local center.

Frequently Asked Questions

Can you donate plasma if you have Type 2 diabetes?

Yes, in most cases. If your Type 2 diabetes is well-controlled with oral medications like metformin or glipizide and you have no serious complications such as kidney disease, neuropathy, or retinopathy, most plasma centers will accept you. You must pass the standard health screening including blood pressure, weight, hematocrit, and protein levels. Your blood sugar should be stable and within an acceptable range at the time of each donation.

Can Type 1 diabetics donate plasma?

Usually no. Most plasma centers in the U.S. defer Type 1 diabetics because they require insulin injections to manage their condition. The primary concerns are the risk of hypoglycemia during the donation process, injection site complications, blood sugar instability when fluid volumes change, and the autoimmune nature of the condition. A few smaller or independent centers may evaluate on a case-by-case basis, but all major chains including CSL Plasma, BioLife, Octapharma, and Grifols maintain a standard deferral policy for insulin-dependent donors.

Can I donate plasma if I take metformin?

Yes. Metformin is an oral medication and is accepted at virtually every plasma donation center in the country, including CSL Plasma, BioLife, Octapharma, and Grifols. Metformin works by reducing glucose production in the liver and improving insulin sensitivity. It does not affect the plasma collection process, does not alter plasma quality, and does not create the hypoglycemia risks associated with insulin injections. Simply list it on your medication questionnaire during the health screening.

Does donating plasma affect blood sugar levels?

It can cause temporary fluctuations in either direction. The saline solution returned to your body during the apheresis process can dilute blood glucose and cause a temporary dip. Conversely, the stress response from the donation process may trigger cortisol release, which raises blood sugar. Fasting or eating too little before donation can cause blood sugar to drop further. Diabetic donors should check their glucose before and after every donation, eat a balanced protein-rich meal 2-3 hours beforehand, bring glucose tablets as a safety net, and monitor for delayed effects for up to 24 hours afterward.

Can I donate plasma if I take Ozempic or another GLP-1 medication?

Generally yes. Ozempic (semaglutide), Trulicity (dulaglutide), Mounjaro (tirzepatide), Victoza (liraglutide), and other GLP-1 receptor agonists are not insulin, even though some of them are administered by injection. They work by stimulating your body's own insulin production in response to food, slowing stomach emptying, and reducing appetite. Because they are categorically different from exogenous insulin, they do not carry the same hypoglycemia risks during donation. However, policies can vary by location, so confirm with your specific center before your first visit. Bring your medication pen or prescription label to show staff that your injection is a GLP-1 agonist and not insulin.

What blood sugar level disqualifies you from donating plasma?

Most centers do not publish exact numerical cutoffs, but general industry practice suggests that blood glucose above 200 mg/dL or below 70 mg/dL at the time of screening will result in a same-day deferral. Any visible symptoms of hyperglycemia (excessive thirst, blurred vision, fruity breath) or hypoglycemia (shakiness, sweating, confusion, rapid heartbeat) will also result in deferral regardless of your actual glucose reading. The ideal blood sugar range for donation day is roughly 80-150 mg/dL, with most centers accepting readings up to about 180 mg/dL without issue.

Can I donate plasma if I have pre-diabetes?

Yes, without any special restrictions. Pre-diabetes, defined as an A1C between 5.7% and 6.4% or a fasting blood glucose of 100-125 mg/dL, does not disqualify you from donating plasma at any major center. You are not on insulin, your blood sugar is only mildly above the normal range, and you have not developed diabetes-related complications. From the plasma center's perspective, donors with pre-diabetes are essentially treated the same as non-diabetic donors. If you take metformin as a preventive measure for pre-diabetes, that medication is also fully accepted.

Will plasma centers know I have diabetes if I don't tell them?

You are legally and ethically required to disclose diabetes and all medical conditions on the health questionnaire at every plasma donation visit. Lying on or omitting information from the screening form can result in permanent deferral from the center and potentially from the entire chain. It may also have legal consequences. Centers check vital signs at every visit and may detect abnormalities that suggest undisclosed conditions. More importantly, hiding diabetes puts your own health at serious risk. If something goes wrong during donation and the staff does not know you have diabetes, they cannot respond appropriately. Honesty protects you, protects other donors, and protects the patients who will ultimately receive therapies made from your plasma.