Q. Are my elevated RBC and hematocrit values suggestive of sleep apnea?

Answered by
Dr. Parth R Goswami
and medically reviewed by iCliniq medical review team.
This is a premium question & answer published on Oct 02, 2021

Hello doctor,

I am a 21-year-old female. My height is 5'8", and my weight is 185 lbs. I take tablet Tirosint 50 mcg for my Hashimoto's thyroiditis and tablet Slynd for PCOS. My blood reports showed slightly elevated RBC and hematocrit and low MCH. I have had migraines for six years.

What is causing the rise in my RBC and hematocrit? Could this be due to my medications? Does my blood values suggest sleep apnea?




Welcome to

I have checked your CBC (complete blood count) report (attachments removed to protect the patient’s identity). In the attached blood report, red blood cells and hematocrit are slightly high, while MCH (mean corpuscular hemoglobin) is borderline low. These fluctuations could be due to dehydration. Your hemoglobin, white blood cells, and platelets count are normal. So, your fluctuated values have no significance in your case, and nothing is to be done for that.

Your medicines are not responsible for these changes.

Best regards.

Hi doctor,

Thank you very much for your reply.

I do not snore at night. However, I am tired during the day, but that could be because of my migraines and thyroid condition. I get migraines very often, which has been going on for six years, so I highly doubt that now it is a result of sleep apnea.

I thought it was dehydration and repeated the bloodwork after three days and the results were still the same.




Welcome back to

Following is my further opinion on your questions.

You might be tired in the daytime because of a thyroid issue. However, for that, I suggest you do serum calcium estimation, vitamin D estimation, urea, creatinine, and SGPT (serum glutamic pyruvic transaminase).

Slight high RBC seems to be due to dehydration in your case because your hemoglobin and other CBC parameters are within range.

Kindly take plenty of water for two to three days and repeat your blood work.

Best regards.

Was this answer helpful?


Same symptoms doesn’t mean you have the same problem. Consult a doctor now!

Related Questions:
High Hemoglobin Levels: Is It Dangerous?

Polycythemia is the medical term for high hemoglobin ... Polycythemia can be secondary or primary ...   Read full

Is it possible to get high RBC in blood test due to fasting?

Hello doctor, I had a blood test done two months back and my RBC was 60, hemoglobin 172, and hematocrit 51, which were all high especially RBC ...   Read full

What is the prognosis of hypertrophic Hashimoto's thyroiditis?

Right now, usual symptoms of hypothyroidism are present like extreme fatigue, dry hair ... From the details posted it appears as autoimmune hypothyroidism (Hashimotos) ...   Read full

Also Read Answers From:

ideaComprehensive Medical Second Opinion.Submit your Case

Also Read

The New COVID Variant From South Africa (Omicron)
The World Health Organisation has enlisted Omicron to be a variant of concern. Just scroll down the article to know abou...  Read more»
Managing Diabetes During Festive Season
All the festivals are indirectly a danger sign for diabetic patients. Read this article to know more about how to handle...  Read more»
What You Should Eat and Drink for A Healthy Life!!
Food is essential for our survival, and what we eat definitely impacts our health. We can easily reduce the risk of many...  Read more»

Ask your health query to a doctor online?

Ask a Hematologist Now

* guaranteed answer within 4 hours.

Disclaimer: No content published on this website is intended to be a substitute for professional medical diagnosis, advice or treatment by a trained physician. Seek advice from your physician or other qualified healthcare providers with questions you may have regarding your symptoms and medical condition for a complete medical diagnosis. Do not delay or disregard seeking professional medical advice because of something you have read on this website. Read our Editorial Process to know how we create content for health articles and queries.