What reactions can I expect from donating blood or plasma?

What is the difference between lymphocyte percentage and lymphocyte count? My CBC shows normal lymphocyte percentage but low lymphocyte count. My white blood cell count is normal as well.

Why would the whites of my eyes have turned yellow?

I am anemic and the doctor wants me to take 325 mg of iron sulfate a day. Is that dangerous? The recommended daily dose is only 18 mg a day.

I have irritable bowel syndrome (IBS). My main symptoms are bloating, gas and diarrhea. What dietary advice can you offer?

I recently had an abdominal ultrasound exam to see if I had gallstones. No gallstones, but my spleen was enlarged. What might cause this?

I am concerned that drinking a cup of coffee in the morning will slow my body from absorbing the iron. If I drink a cup of coffee at 8:30 a.m., is it relatively safe to take my iron pill around 10:30 a.m.? Or should I stop drinking any coffee?

Why would someone crave and eat chalk? I have been eating large amounts of chalk (sidewalk chalk) since my pregnancy. My baby is now four months old and I am still craving it.

My wife has to have an angiogram and is nervous about it. Can you tell us what will happen in this procedure?

I check my own blood pressure. Until recently, my blood pressure stayed around 135/75. About two weeks ago, it suddenly shot up to 188/90. My doctor increased the doses of my blood pressure pills. But my systolic pressure is still around 170. Why would...

I am a runner. I have bruising on my legs after running. This only happens when I am racing, not during my everyday runs. Could this be caused by poor circulation? I've been running for 10 years and I’ve never experienced this until a few months ago.

I have Hepatitis C. My viral load did not respond to treatment with ribavirin and interferon. What else can I do?

I am tired a lot, and have been tested for all the usual suspects. I eat fairly well, and get enough rest each night. My doctor told me I was “a little low” on B-12. Could this be the real cause of my fatigue?

What is an ANA blood test?

I have a high iron blood level. Should I be on a special diet?

I always feel cold, even in the summer. It's so bad now that it interferes with my work and enjoyment of life. What might cause me to always feel so cold?

My CBC shows an abnormal MCH reading of 31.3. What is MCH, and what does this mean for my health?

Is acute leukemia curable?

My lymphocyte count is 52 percent. My white blood cell count is 5,400. Do I need to worry?

What is a pelvic phlebolith?

If someone has both genes for Factor V, would all their siblings have it also? What about their children?

I give blood, but I keep getting a false positive for syphilis. After additional testing it comes back negative every time. What could cause this to happen?

A test showed that I have a low white blood cell count of 3800. I have not had any issues with my health besides a head cold. What are the most likely causes of a low white blood cell count?

What is hyperbilirubinemia and what causes it?

My daughter and I recently attended the Macy’s Thanksgiving Day parade. It was 35 degrees F and we stood outside for several hours.