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Doctor insights on: Test Physiologic Measure

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Can a normal urine test detect pregnancy ?

Can a normal urine test detect pregnancy ?

Pregnancy Testing: A normal home pregnancy or in clinic urine test can detect pregnancy. But a normal ua done for other reasons does not test for pregnancy. You need the pregnancy urine test. ...Read more

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What is a neuropsychological test and what does it measure?

What is a neuropsychological test and what does it measure?

Depends: As noted there are many different tests and these are usually combined in a "battery" that attempt not only to measure the degree and severity of brain abnormalities, but also try to predict how individuals will function given the injuries, deficits, or degrees of decline. The tests are also used to track the progression of a disease, and plan rehabilitation treatments and programs. ...Read more

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What does quantitative igg subclass measurement blood test show?

What does quantitative igg subclass measurement blood test show?

IgG subclasses: There are several classes of immunoglobulins like IgA, IgM, and IgE. IgG also has subclasses that we test for. A subclass deficiency can be an explanation for susceptibility to certain types of infections. An Allergist/Immunologist can put the results in perspective for you in the context of your history. ...Read more

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Had d&c first cycle came exactly 4 weeks later now 2 cycle is three days late feeling nauseaus yet pg test shows neg ?

Had d&c first cycle came exactly 4 weeks later now 2 cycle is three days late feeling nauseaus yet pg test shows neg
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Do another one: If no period in 2 more weeks, do another pregnancy test. If still negative, wait until the next period is due. If no period again and pregnancy test is still negative, see your doc. You may need to have your period induced. ...Read more

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Acth stimulation test results accurate?

Acth stimulation test results accurate?

Depends: I'm assuming no lab errors. If you get a very high cortisol spike after receiving the first dose of ACTH, you are reassured you do not have Addison's. No, or a very small spike, strongly suggests Addison's. In-between... that's why there are specialist endocrinologists. ...Read more

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What will an insulin response test measure?

What will an insulin response test measure?

Clarification: Are you talking about an Insulin tolerance test, in which you give somebody Insulin and measure response of other hormones or about how your Insulin responds when you get a sugar load. ...Read more

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Can a blood test measure electrolyte levels?

Can a blood test measure electrolyte levels?

Blood values: Yes, the only way you can test for electrolyte levels in the one's blood is by drawing it and sending it to the lab for analysis to what they are. ...Read more

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What is normal PH level in urine when doing dipstick test ?

What is normal PH level in urine when doing dipstick test ?

Urine is acidic: There isn't a lower level of acidity. But NOT acidic is NOT normal. 7 is neutral so, 6.5 or below is normal. ...Read more

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Could sestamibi nuclear stress test only evaluates left ventricular function?

Could sestamibi nuclear stress test only evaluates left ventricular function?

NO: Nuclear stress test are done to evaluate coronary circulation/ blockages/CAD. As lagniappe they provide info re LV function. However, there are less expensive and invasive test that evaluate LV function just as well or better, like echocardiography ...Read more

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Is acth stimulation test done at a normal lab that draws blood?

Is acth stimulation test done at a normal lab that draws blood?

ACTH test: The lab can draw blood for measurement of cortisol, but someone has to give the injection of acth (cortrosyn). The injection can be given IV or im. A lab that only draws blood would probably not be able to do this. Someone needs to order the acth and give the injection. ...Read more

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Please tell me what a cardio CRP test measures and how reliable it is?

Please tell me what a cardio CRP test measures and how reliable it is?

Inflammation: CRP stands for "c-reactive protein" which is a non-specific measure of inflammation. In my book, it's a worthless test. Good summary: http://www.nlm.nih.gov/medlineplus/ency/article/003356.htm ...Read more

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At what point does a urine pregnancy test measure hCG of 25mlu?

At what point does a urine pregnancy test measure hCG of 25mlu?

Very early.: In normal pregnancy, HCG can be detected in blood in 7 days after fertilization of egg. It doubles every alternate day and reaches 100 mlu/ml at the first missed menstrual period. ...Read more

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How does stress test check or measure oxygenation?

How does stress test check or measure oxygenation?

CPET: Cardiopulmonary exercise testing measures oxygen consumption at rest and during maximum exercise, usually on a stationary bicycyle or sometimes on a treadmill ... ...Read more

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I have been told I have an electrical system that does not work properly several test done on two med for this should they do something else.?

I have been told I have an electrical system that does not work properly several test done on two med for this should they do something else.?

"electrical system": Are you speaking of the electrical system of the heart or of the nervous system? What medications are you taking? The answers to these questions will help us better answer your question. ...Read more

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What to do if I have a drug test in two days, what works best at gnc?

What to do if I have a drug test in two days, what works best at gnc?

Nothing: There is nothing commercially available that will help you beat a drug test, and no ethical physician would or should tell you even if there were. What to do is to not use illicit drugs when such use puts you at risk - this is the definition of having a drug problem. Modern methods of drug testing will detect pretty much every potential technique for beating it. See your health professional. ...Read more

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Saliva cortisol tests are abnormally low. Serum cortisol tests are normal. Dr says i don't need an acth stim test due to serum results. Agree?

Saliva cortisol tests are abnormally low. Serum cortisol tests are normal. Dr says i don't need an acth stim test due to serum results. Agree?

Yes: If your saliva cortisol tests are low, then you have adrenal insufficiency. Acth stim test will only help determine if the cause is in the adrenal glands, pituitary gland or hypothalamus. Without other hormonal abnormalities or abnormal levels of sodium or potassium, this test is generally not needed and treatment for the adrenal insufficiency can be done. ...Read more

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Is there blood tests to test my circadian rhythm?

Is there blood tests to test my circadian rhythm?

Not yet: Most circadian rhythm testing is based on levels of melatonin in the body. These tests are usually only performed in research laboratories and not in your doctors office. Sometimes questionnaires and a form of sleep wake monitoring called actigraphy is helpful in determining an individuals general circadian rhythm. ...Read more

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Can a 24 urine cortisol test reliably rule out adrenal insufficiency? At what cortisol level?

Can a 24 urine cortisol test reliably rule out adrenal insufficiency? At what cortisol level?

Most helpful test: The 24 urine cortisol testing is one of the most sensitive tests and gives a better picture over the course of the day instead of just getting a sample from you a single time. There are blood tests and saliva tests which can be falsely be falsely elevated or falsely low depend L depending on your other medications and the time the test is performed. The best is to see an endocrinologist to help. ...Read more