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Doctor insights on: Biuret Test

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How do doctors do pregnancy test blood test or urine test which is more effective doctor test or home pregnancy test?

How do doctors do pregnancy test blood test or urine test which is more effective doctor test or home pregnancy test?

Blood test: Blood test is more sensitive, provides a number, is generally positive sooner than urine test and is generally more reliable. Urine test is cheaper, can be done at home without the need to go to a doctor and is positive 4-5 days after a missed period. Both test are accurate when positive. A negative result on a test done too early is not meaningful. ...Read more

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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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Invalid pregnancy test result. How come?

Invalid pregnancy test result. How come?

Invalid preg test?: Urine pregnancy tests can be "too early" to be valid. You need to be at least 5 days past your expected period. Urine also needs to be 1st of the morning (concentrated) to be valid. ...Read more

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Docs, could a blood test or urine test detect chlamydia?

Docs, could a blood test or urine test detect chlamydia?

Testing: Chlamydia tests include a culture that may take 5 to 7 days to grow. A direct fluorescent antibody test looks for antigens. A nucleic acid hybridization test or a nucleic acid amplification test looks for chlamydia dna &enzyme –linked immunosorbent assay. Directing sampling uses fluids from cervix, urethra throat, eye (whichever area is impacted). Urine testing is also possible. ...Read more

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Positive blood serum pregnancy test June 27. Urine tests still neg. should I be concerned?

Positive blood serum pregnancy test June 27.  Urine tests still neg.  should I be concerned?

June 27? today 6/22: I think you meant 6/17? Serum pregnancy test can detect pregnancy quite a bit earlier than the urine test can... if you tested positive on 6/17 with serum, the urine test should be coming soon.. any question/concern, consult doc. Good luck. ...Read more

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What are the 12 panel drug test tests for?

What are the 12 panel drug test tests for?

Varies: I am not sure there is a standard 12 panel test. Most I have seen look for the following: •amp-amphetamines •coc-cocaine •bzo-benzodiazepines •opi-opiates •thc-marijuana •pcp-phencyclidine •bar-barbiturates •mamp-methamphetaminemdma-ecstasy •mtd-methadone •oxy-oxycodone •ppx-propoxphene. ...Read more

Dr. James Lin Dr. Lin
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Went to doc. Had pregnant urine test. Positive. Blood test result: 4147 (#) <3 mlu/ml: neg 3-8 mlu/ml: may indicate early preg. What does it mean?

Dr. James Lin Dr. Lin
2 doctors agreed:
Went to doc. Had pregnant urine test. Positive. Blood test result: 4147 (#) <3 mlu/ml: neg 3-8 mlu/ml: may indicate early preg. What does it mean?

Here are some…: I'm glad to see you have received such wonderful medical care; however, based on currently available information, it would be most logical to direct your current concern & question to the treating doctor for confirmation & counseling so to minimize potential confusion and anxiety, which commonly results from online inquiry. Of course, make sure to supply detailed Hx stressing sequence of events. ...Read more

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Faint positive hpt w/ first morn urine, neg dr. Urine test later that day, blood test came back post. Why was drs urine test neg? Early testing?

Faint positive hpt w/ first morn urine, neg dr. Urine test later that day, blood test came back post. Why was drs urine test neg? Early testing?

Pregnancy tests: Blood tests are more sensitive than urine tests, especially in early pregnancy. First morning urine is usually more concentrated than urine produced later in the day. Eating and drinking can dilute the urine enough to cause a false-negative result. That is why the blood test is done for confirmation. ...Read more

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What laboratory test can detect hypocalcemia?

What laboratory test can detect hypocalcemia?

Hypocalcemia: A simple blood test, but there must be several other lab tests to be done on the same sample. If your doctor only requested serum calcium you might need a new doctor. Low calcium on its own must have a cause and that must be found by the lab studies. ...Read more

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When should preg test done (blood test)..? L.M.P 24/3/2015

When should preg test done (blood test)..? L.M.P 24/3/2015

Only if Dr. wants it: Otherwise, a home urine test works just fine. Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, or medications. A correctly done urine test gives a reliable result 3 weeks after sex (3 weeks after when conception might have happened) or 1 week after missing a period. Home tests are cheap and sold everywhere. ...Read more

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Can pregnacy test determine uti?

No Need HCG test: No.Pregnancy test is a test of level of HCG quantity level and UTI determined by looking under microscopic changes or culture of urine result if positive. Take care. ...Read more

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Positive (faint line) home pregnancy test 2/18, urine test at doc. Confirmed pregnancy. Home test again 2/22 still very faint + line, is this normal?

Positive (faint line) home pregnancy test 2/18, urine test at doc. Confirmed pregnancy. Home test again 2/22 still very faint + line, is this normal?

Yes: I would be concerned if home test went from positive to negative. If you're having a lot of anxiety over this see if your doctor will repeat your serum pregnancy test in a few days, but i would not worry too much. It won't help to be overly stressed. ...Read more