Doctor insights on:
Urine Test Vs Blood Test Thc
Urine is the product of the kidneys, which is produced to eliminate the waste products of metabolism, manage body fluid balance, &maintain acid-base balance. The blood is first filtered by the kidneys, and the composition of the resulting fluid is then altered depending on the body's needs. It is composed of mostly water, and breakdown products from blood cells impart ...Read more
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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Can pregnancy blood test give false negative. 3 days late, urine test negative and blood test negative too?
Drug test: This is a laboratory test which analyzes the concentration of marijuana products in the urine. Some consider this an invasion of privacy, but some industries require this as a screen for employment. This falls under the political issue of whether these substances are a serious problem or not. ...Read more
My metanephrine free urine was 51, blood test was 63, normetanephrine free urine 181, blood test 150- total urine 232, blood test 213. Normal?
Sounds normal if....: the upper limits for blood metanephrine and normetanephrine are 0.50nm/l and 0.90nm/l. Urinary levels are, respectively: Total 24 hr. metanephrine =1.3mg for urine; and total plasma ME+NME is less than 205pg/ml. It sound as though you're within the normal ranges, but depending on the units of measure, which vary from lab to lab and med ctr to med ctr., you may not. Meet w/ your endocrinologist. ...Read more
Had urine test, some results urine occult blood negative trace Urine protein screen negative, trace mg\dl negative. is this normal reading with trace ?
Normal: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is in the best position to do that. Having said that, the results you provided are normal. ...Read more
No: Neither on screening tests or confirmatory tests. They are totally different chemicals that are unrelated, and tests do not confuse the two. ...Read more
Not sure, but: I'm not sure the exact level, but i can tell you that the best way to pass the test is to not have thc in your system. Also remember that the labcorp test not only checks for thc, but also for metabolites of thc. So, almost any in your system and it's hard to pass the test. ...Read more
Can a blood pregnant test show up positive before a urine pregnant test? How early can the blood test show positive?
Endometrium present 18 days on period negative pregnancy test results via blood and urine tests. Possible causes?
Urine Drug Screen: This should not be a problem.Get a more detailed answer ›
The hospital took my urine and blood test and did an xray and I never gave my stool, could they find THC in those tests?
Depends on what: they are looking for. Drug-testing generally requires the consent of the person being tested. If you did not consent to it, and they do it, you may have legal recourse to suppress any results. THC can be found in blood and urine. Drug testing is NOT done in stool, except for meconium testing in newborns, at least to my knowledge. ...Read more
Drug tests: Suprisingly, both nicotine and thc can stay in your system and be found in urine up to 3 months after you stopped smoking. But quitting is worth it! you will taste and smell more; you will run and move easier; you will have more energy and be more motivated to do! check out "whyquit.Com". One of my patients, a 35+yr smoker of cigarettes and 20+of thc, was able to quit using this resource! good luck. ...Read more
My urine is clean after ingesting THC a week ago. However, my cycle has begun. Will a urine test read positive because of the menstrual blood?
How high ?: Glucose can be reabsorbed by the kidneys until the blood level exceeds about 130 mg/dl. Once the blood glucose exceeds 130 glucose starts "spilling" out in the urine. Blood glucose can therefore be abnormally high, up to about 130 without any evidence of glucose in the urine. Once above that level typically it will show up in the urine as well. ...Read more
Rarely: although it is uncommon one can have her reduced level of kidney function with normal blood and urine test. This is most common in older patients with decreased muscle mass and also with people of small stature or small frame. Their kidney function is better assessed by doing a 24 hour urine collection protein and creatinine clearance. Imaging test are also useful such as kidney ultrasound ...Read more
If I test negative for cotinine on a urine test is it likely that I will also be negative on a blood test?
Yes. : The cotinine is the test of choice. ...Read more
IUD since 21Jan. Everything ok til 18 May. Lower ab pain and went to gino and IUD in right position, blood test ok, urine test ok. What can be wrong?
Get checked: Pelvic pain is complex as there are several organs in the pelvis. The ovaries, fallopian tubes, uterus, cervix, bladder, appendix, intestines, colon and rectum can all be the source. Pelvic pain requires an examination to help organize the evaluation. The iud may or may not be related. Your pregnancy test is negative so you are not pregnant. ...Read more
Normal blood sugar but have +1 in sugar un urine. I was fasting for more than 12 hrs when i got blood test then ate a lot before urine test. What is ?
Drug testing: The key issue for sensitivity is the method of detection, and the physiology of the drug in the body. Many drugs are metabolized or excreted through the urine and thus tend to be concentrated in urine samples that are tested by lateral flow immunoassay. Blood testing by Mass Spec is also highly sensitive but not as widely available. ...Read more
Today is 37 day..Through urine test it shows postive but oly through blood test it should be confirmed ah?
A serum pregnancy: Test is the gold standard. It is the most accurate test - so not sure why you want additional confirmations. ...Read more
Ok. So you are saying that it will not show up on a urine test but will on a blood test? How long will it show up in a blood test? I tried 2 - 10mg.
Need to know: which medication. Questions on this site don't come together unless you respond to the original answer. ...Read more
Longest cycle 35 days long. Last AF was 8/2. Today is 9/20 & still no AF. Negative blood test last week & negative urine test today. What's goin on?
Hormonal imbalance: Menstrual irregularities are not uncommon and anovulatory cycle is a common cause. If you miss more than two periods it would be time to see your doctor. If you do not wish to be pregnant, use contraception all the time. You may consider implanted contraceptive or an IUD. Consult this site for more information on this topic. http://www.nichd.nih.gov/health/topics/menstruation/conditioninfo/Pages/causes.aspx Practice safe sex. Get HPV vaccine. ...Read more
I had a blood test when I was 8days late and a urine test and it showed negative, I am currently 1 5days late but not tested since I had bloods done?
No need to test: If your blood test was negative at 8 days after a missed period, you not likely to be pregnant. Menstrual irregularities are not uncommon and anovulatory cycle is a common cause. If you miss more than two periods it would be time to see your doctor. If you do not wish to be pregnant, use contraception all the time. You may consider implanted contraceptive or an IUD. Consult this site for more information on this topic. http://www.nichd.nih.gov/health/topics/menstruation/conditioninfo/Pages/causes.aspx Practice safe sex. Get HPV vaccine. ...Read more
Yes and no: Yes as it may show you a positive result if you are pregnant. However, many times you may get a negative result while you are pregnant. This is a false negative. For that reason, i recommend that my patients wait for the blood testing to avoid confusing or incorrect results. ...Read moreSee 1 more doctor answer
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