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Laboratory Testing

Before a doctor can diagnose a patient, laboratory tests such as blood work are required.

8,512 Questions

How can you test your blood type?

You can find out your blood type by visiting your doctor and asking. You can also donate blood. After donating blood, they will send out your results. It will most likely have your blood type.

You smoked one half a joint two week ago are you clean for your urine test?

Testing positive has a lot of different factors.What is your past 30 days smoking history, eating habits, activity levels, weight,height? Also Cannabis detection period by Urine Test - single use (2-3 days) and habitual use (up to 12 weeks).Check yourself with a home drug test.

Can guaifenesin cause a false positive in a urine drug test?

Yes! It did for me and my mother. I tested positive for amphetamines after taking mucinex that morning. They even sent my urine to the lab and it came back for 1000 nanograms of the amphetamines. Plus back a few years ago my mothers pain mangemeny doctor told her mucinex can come back positive for meth or ecastcy. No matter what other websites say. Its very VERY possible.

Guaifenisen, the active ingredient of Mucinex and Robutussin, is an expectorant that thins sectretions and so makes them easier to cough up. It can intefere with testing for certain conditions but usually will not, all by itself, cause a false positive drug test.

The prepararations that also contain a decongestant, usually labelled with a "-D", do contain stimulants that can trigger false positive tests for amephetamines (not really a false positive since the ephedra is a weak drug in the same class).

Preparations containing the cough suppressant dextromethorphan, usually labelled "-DM", can trigger a positive result for codeine and opiates.

What is the normal CD4 COUNT?

Anything above 800 cells/ml is considered normal.

What blood test needs to be kept warm after collection?

There are a lot of them, in fact, some blood tests require the blood be collected in a cold vial, therefore, certain vials are stored in the refrigerator or freezer, depending on the specific requirements.
Some need to be stored at room temperature and others immediately frozen and kept frozen until ready for testing.
Due to the amount of blood tests available, it would be almost impossible to answer which ones need to be kept cold.

What if your white blood cell count is 11.3?

The normal white blood count for the general population is around 7-8. So 11.3 is slightly high but not by much. You should go to your doctor and see what your baseline is. You MIGHT be one of those people who have a slighlt high count but it's normal for you. If you are worried you can ask your doctor to see a hematologist. Also if you have been taking meds, certainones like steriods can raise your count.

Why is an ECG a important medical tool?

They can record the heart monitor as a trace in this ecg

What is the medical term meaning the percentage by volume of a blood sample occupied by red blood cells?

hematocrit
The hematocrit is the percentage of red blood cells by volume.
A hematocrit is the term that describes the percentage by volume of a blood sample occupied by red blood cells. It is usually about 45%.
Hematocrit

What is the purpose of resting before taking the blood pressure?

exercise elevates the bp

you're looking for a steady state (approximately) in getting the bp

What are the standard drugs tested for in a hair drug test?

Hair follicle testing can test for any and every drug there is. The drugs can be traced back some to two years since the last use of the drug.

Hormone whose secretion is controlled by TSH?

The negative feedback system between the pituitary gland and the thyroid.

What is bleeding time?

"Bleeding Time" is an archaic and inexact method or measuring platelet action and clotting factor. In this method, one cuts the patient in a very specific way (various methods exist), turns on their stopwatch, and waits for the bleeding to stop. The number of factors that can effect this test, robbing it of its accuracy are myriad -- far too many to list at this time. Instead, standard lab testing for clotting factor of a blood sample is far more accurate, and avoids the nuisance of attacking your patient with a sharp blade.

What does it mean if there's protein and Bilirubin in your urine?

Several different things.

If there is blood, there's potential for urinary track infection or it could be leading to kidney failure.

Protein is the same thing with as the blood, but also your liver could be having problems.

The difference between hair and hair follicle?

a hair folicle is the root of the hair which is located in the lower part of the dermis. It is also connected to the arrector pili muscle. Hair is better known as the hair shaft and is the part inside of the hair folicle that comes out through the very top layer of skin and only fractionally protects our skin from sunlight

Could diabetes affect the Complete blood count test?

yes and no it depends on the person though i am not a doctor. Give it to God pray about it.

What characteristics does an abnormal aldolase test have?

As noted, aldolase is elevated in skeletal muscle diseases, such as muscular dystrophies. Duchenne's muscular dystrophy, the most common type of muscular dystrophy, will increase the aldolase level more than any other disease.