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Drinking water before fasting blood test

A 23-year-old female asked:
Dr. Gurmukh Singh
Pathology 50 years experience
No: Water with electrolytes will not affect thyroid blood tests. However, you are wasting your money on such water. Tap water is just as good if not bette... Read More

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A 33-year-old male asked:
Dr. Jack Rubin
Nephrology and Dialysis 49 years experience
Fasting Blood Test: Yes, you can drink water and eat no food for your test.
A 37-year-old member asked:
Dr. Terri Washington
Endocrinology 17 years experience
Yes: Plan water no lemon or additives can be taken before a fasting blood test.
A 41-year-old member asked:
Dr. Douglas Miller
Pathology 42 years experience
Yes: Water is fine before a blood glucose test, but don't eat any food or drink other liquids which might falsely elevate the glucose level in the blood.
A 44-year-old member asked:
Dr. Claude Parola
Internal Medicine 41 years experience
No problem: Yes, it is ok to drink a little water if thirsty.
A 20-year-old male asked:
Dr. Bennett Werner
Cardiology 45 years experience
Normal: Strenuous muscular exercise elevates the CK - this is NOT abnormal. Drinking water is certainly a healthy thing to do when you're sweating, but it wil... Read More
A 33-year-old male asked:
Dr. Stuart Hickerson
Family Medicine 33 years experience
Ck/CPK: Creatintine kinase is one of the enzymes in your muscle. If you are male and you have reasonable muscle mass this could be your normal serum level.
A 33-year-old male asked:
Dr. Miles Mitchell
Specializes in Family Medicine
It's variable: Lab-to-lab variability is because of differences in equipment and techniques. Doctor's are trained to make good decisions despite these challenges in... Read More
A female asked:
Dr. Ed Friedlander
Pathology 45 years experience
This is serious: Anyone can have +1 ketones in the urine from missing a meal, but more is worrisome. Please repeat. Low blood potassium reflects illness rather than ha... Read More
A 42-year-old male asked:
Dr. Gurmukh Singh
Pathology 50 years experience
No: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that.... Read More