Doctor insights on:
Can Estrogen Effect The Accuracy Tsh With Reflex Test
What would interfere with the pituitart-gonadal sex hormone control mechanism causin FSH & LH surges to be highly unpredictable in simple terms
What is the risk associated with suppressing fsh/lh when using hCG to increase testosterone in men?
Minimal: Let's put it this way: using any type of t to replace/fix hypogonadism/andropause will also suppress fsh/lh. But more importantly, taking t will shut down testicular function from lack of fsh/lh. Using HCG to stimulate the testes to produce more t & sperm will result in negative feedback @ pituitary, thus suppress lh/fsh. But at least your testes are functioning fully. It's off-label but it works. ...Read moreSee 1 more doctor answer
Which of the following accurately predicts problems with cortisol levels blood test, 24 hr urine or midnight saliva swab?
Depends: Blood cortisol is useful in the diagnosis of cushings (hypercortisolemia) or adrenal insufficiency. A 24 hr urine cortisol is helpful to diagnose excess cortisol. Saliva cortisol is only helpful in diagnosing excess cortisol, not adrenal insufficiency. If a blood cortisol level is low, further evaluation is required to establish if your adrenal function is truly low. ...Read more
When the estrogen in birth control pills affects libido, does the correlation between dosage amount and libido level tend to be positive or negative?
After a early positive pregnancy test with blood work and hCG level of 40, progesterone at 6.5 would you prescribe progesterone to boost the level?
Since prometrium (micronized progesterone) can increase estrogen levels as well as progesterone, would thyroid test results be altered while on this medication?
Controversy surrounds those patients with a suppressed tsh. Isn't it true that when a hypothyroid patient starts taking exogenous th, a negative feedback system reduces the pituitary gland's output of tsh. This decreases the thyroid gland's output of en
Endo feedback: With primary hypothyroidism, TSH is elevated in an effort to push the thyroid gland to make more thyroxine. Treatment with levothyroxine indeed signals the pituitary to reduce TSH output. Secondary is when either/or pituitary +/- hypothalamus is damaged but unable to produce tsh. Then, thyroxine levels drop but the pituitary can't respond. Tsh can't monitor treatment but free T4 levels can. ...Read moreSee 1 more doctor answer
Can irregular cycles have an impact on the amount of hCG released and therefore cause a false negative pregnancy test?
Do doctors trust the fertility test that tests for FSH on day 3 of a cycle? They supposedly are positive with levels of 25miu/ml of FSH in the urine.
One way: It is one way and method, but i wouldn't rely on it completely. Other testings available and might be need for confirmation. ...Read more
My clearblue digital ovulation test says pcos may affect the results. How? And does that mean it may cause false positives/negatives?
Do beta blockers affect the result of the blood tests for renin activity, aldosterone, cortisol and ACTH?? If so, is it worth to still test?!
Blood tests: The simple and straightforward questions are important, so please set up an appointment with your primary doctor. Your irritable bowel issue, with high blood pressure is an indication that you need to see your doctor. in contrast, you should have your doctor refer you to a Psychologist because of your anxiety. Please keep me posted. ...Read more
A friend of mine claims Paragard IUDs can cause positive pregnancy tests, by producing the hCG hormone. This is completely false, right?
I have hypocretin deficient narcolepsy which reduces TSH levels along with autoimmune hypothyroidism. Is the TSH test reliable to gauge my thyroid?
Not always: TSH is not always a reliable test, because it relies on what the pituitary thinks, but different tissues may have different sensitivity to thyroid hormone. In addition, some people make too much reverse T3 (liothyronine), (liothyronine) which can block the action of T3 (liothyronine). Google "stop the thyroid madness" ...Read moreSee 2 more doctor answers
Two questions. Will estrogen and other contraceptives affect the serum ACTH test? And will oral hypoglycemics affect BUN results?
Estrogen: In small amounts should not affect ACTH but theoretically, estrogen increases cortisol binding protein needing a little extra ACTH to compensate for the temporary decrease in free cortisol. Second question, they do not but we should be careful because renal imsufficiency makes them stronger ...Read more
Obgyn says hormone levels do not show perimenopause, estrogen high. Is this test definitive or could results fluctuate day 2 day with hormone levels?
Regular periods?: If you are having regular periods, you are not perimenopausal. If your periods are irregular, you have hirsutism, and are overweight, you may have polycystic ovarian syndrome. Estrogen levels fluctuate throughout the menstrual cycle. An FSH level is a better indicator of perimenopause, and will become elevated as you enter menopause. ...Read more
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