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Laboratory Testing

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

8,512 Questions

If the mother has type O positive blood and father has type AB positive the baby has type A negative where does the negative come from if both parents are positive?

The baby could be A Positive, A negative, AB positive, AB negative, B Positive, or B Negative.

In order to know the baby's blood type, you need to know the parent's genotype. From this information, I know the father's genotype. The mother's genotype is unknown. All I know is her phenotype. Since there are two alleles for these genes, Mom's genotype could be AO Positive, AO negative, AA Positive, or AA negative.

Since the father is AB Negative, both of his alleles are know. One is coding for the A antigen and the other for the B antigen. Since he is Rh Negative, neither of his alleles is coding for "usually only Big D is tested" is coding for the Rh factor.

The mother however is A Positive. That is her phenotype. Her genotype could be any of the ones listed above. There is a fifty fifty chance that she could pass on either allele. If she passes on the allele for Rh positive, the baby willl be Rh positive even though the father is Rh negative.

Is a urine test needed for a policy?

Some companies require it and some don't depending on the policy and amount applied for. Your question would lend to tell one that perhaps you are aware that you have a problem medical or drug related. Do you intend to lie when filling out the application? 4lifeguild usually. Also depends on the amount. Be sure to answer the questions correctly or they might still recind the policy.

What does WBC count mean?

WBC stands for White Blood Cells. The count refers to the number of white blood cells in the body. In general, the lower the number of cells below normal the less able you are to fight infection. When the number rises above normal, that usually means you are busy fighting an infection. There are sub-types of white blood cells, too, each of which can rise and fall for various reasons. White Blood Count Is a result of 2.9 L x10^3/uL normal for a white blood cell test?

Your urine routine test shows plus plus 125 leukocytes you want to know if it is anything of major concern?

Leukocytes also known as white blood cells (WBC) in a negative or normal test would be 4.5-11.0. A test showing +125.0 would be indicative of a UTI or Urinary Tract Infection. You should give your doctor a call to see if they want you to take a round of antibiotics.

It is not unusual to find a "silent" UTI in a routine urinalysis. In the mean time drink plenty of water and with your doctors OK, cranberry juice or cranberry capsules. The acid in the cranberries will make your urine unfriendly to the bacteria and if caught early enough may make antibiotics unnecessary. Always check with your doctor first though, if left untreated a simple UTI can progress into a full blown Kidney infection. Take my word, you don't want that.

Why did one group have a placebo sprayed into their nostril before exposure to the virus?

In order to test the effectiveness of a medicine or vaccine, you need to know how much difference just that one factor made in the results. The placebo (a substance that will have no effect on whether a person gets sick or on the course of the illness) is given to the control group, so that any difference in the health of the other group can be attributed specifically to the vaccine or medication.

Why is LY number important in your blood test?

T cell mediated immunity and B cell immunity (Antibody secretion.

What is VDRL?

VDRL is a non-treponemal serologic test for syphilis. A positive VDRL may be due to medical conditions other than syphilis. A treponemal test should be used to confirm diagnosis prior to treatment.

What is the reason for hematology diagnostic test TSH with reflex to FT4?

This is ordered by your health care provider to rule in or out any type of thyroid disorder.

Can the confirmation levels in a lab drug test be higher than an instant drug test?

THC (weed) concentration for:
Lab (IMMUNOASSAY) , instant drug test - 50ng/ml
Lab confirmation test(GC/MS or LC/MS/MS)- 15ng/ml

If your having a blood test what is a ha test for?

the doctors examine your blood to see if you have diabetes or asthma or anemia or any other kind of diseas. also, they can tell if your helathy or over weight or something like that.

Do you undress for a urine test?

You will need to undress to the point so that your observer can positively identify the urine exiting your body, but other than that, no.

RDW-CV was high - what does this mean?

RDW-CV stands for Red Cell Distribution Width - Cell Volume. It means that the red blood cells vary a lot in size.

What is a C blood test?

You'll have to try to be more specific and provide some context. It could be a test for C-antigen on red blood cells, anti-C antibody, hepatitis C,

protein C, C-reactive protein, or a number of other things.

Watching over someone taking drug test?

That is illegal and invasion of privacy. There are very strict precaution when you go to take a drug test such as no bags or items allowed with you in the testing area.

What does a tsh test of 2.8 mean?

It means that the level of thyroid stimulating hormone (TSH) in your blood stream is lower than it should be. Ideally it should be between 0.35 and 5 U/L.

A TSH of this level can be caused by a number of different things.

1. Taking too much thyroxine or triiodothyronine to treat hypothyroidism

2. Hyperthyroidism

3. Secondary Hypothyroidism: this is where both the levels of TSH and free T4 are low

What does the the SST tube contain plasma or serum after processing?

An SST tube will contain serum once its been centrifuged. SST stands for serum separator tube. It will separate the serum from the other blood components.