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Laboratory Testing

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

8,512 Questions

What does lab test a b o stand for?

ABO are blood groups & the test is to identify what blood group does the individual has

What does dark red blood cells indicates?

They are carrying carbon dioxide and are from the venous part of the circularity system.

If the father is A positive and mother is O positive what would the child's blood group be?

There really is no saying what the blood group exactly is. But I would say the chance is probably 50% and 50%. But it depends on who's DNA is more dominate in your body. There really is no saying what the blood group exactly is. But I would say the chance is probably 50% and 50%. But it depends on who's DNA is more dominate in your body.

That depends completely on what recessive gene the father is carrying. We know the mother has only oo, because O is always recessive. Were she to be carrying a gene for any other blood type, she would not be type O because the other gene would be dominate. You carry two genes for the part of the blood type you're asking about. If Dad carries a recessive O, the children will be either type A or type O. If Dad carries a co-dominate A , the children will only be type A because all the genes the father can pass would be the dominate A. The only possibilities for Dad to have for a recessive gene is the co-dominate A or the recessive O.

Ag ratio on lab test means?

The ratio of albumin to globulin in blood serum, plasma, cerebrospinal fluid, or urine. Albumin-globulin=AG ratio. Normal adult ranges are as follows: Albumin is 3.5-5; Globulin is 2.6-4.6 which makes the normal range for the ratio 0.8-2.0.

If both parents are A positive can a child have negative blood?

Yes. If both parents have the recessive gene for Rh negative, a child of theirs could have Rh negative blood. I have two daughters who are Aneg, and both of us are A+.

Where can you buy E. coli bacteria?

You can buy bacteria (and also yeasts, molds, and viruses) from institutions called type culture collections and from some commercial sources that supply high school and university biology classes. Here are some sources for the USA:

ATCC (American Type Culture Collection) http://www.atcc.org This is the authoritative source, but it serves research institutions predominantly and is pretty expensive. Supply of anything to individuals is restricted.

Presque Isle Cultures http://www.picultures.com has a small collection and sells non-pathogenic strains also to individuals.

Carolina Biological Supply also sells a few bacteria including E. coli:

http://www.carolina.com/product/escherichia+coli+b%2C+living.do?keyword=coli&sortby=bestMatches

What blood type can a baby have if both parents have type A blood?

If both parents have type A blood then the baby should have type A blood.

or type O blood

What are the chances of an O negative father and A positive mother have a child?

The chance they will have a child is most likely high unless they use birth control. If the mother were rh-negative, that can sometimes cause complications, though it's usually manageable.

Are rambutan seeds poisonous?

like many other single seed fruits, accumulation of metals and other compounds is likely, I would not fear eating one mistakenly, but wouldn't treat them as almonds

What is J point in ECG?

From American Heart Association

www.circ.ahajournals.org/cgi/content/full/98/18/1937

The J point in the ECG is the point where the QRS complex joins the ST segment. It represents the approximate end of depolarization and the beginning of repolarization as determined by the surface ECG. There is an overlap of 10 milliseconds. The J point may deviate from the baseline in early repolarization, epicardial or endocardial ischemia or injury, pericarditis, right or left bundle-branch block, right or left ventricular hypertrophy, or digitalis effect. The term J deflection has been used to designate the formation of the wave produced when there is a large, prominent deviation of the J point from the baseline. The J deflection has been called many names, including camel-hump sign, late delta wave, J-point wave, and Osborn wave.

The prominent J deflection attributed to hypothermia was first reported in 1938 by Tomaszewski. The wave was observed by others, including Kossmann,Grosse-Brockhoff and Schoedel, Bigelow et al, Juvenelle et al, and Osborn.

Over the years, the unusual wave increasingly has been called an Osborn wave (Figure 4B ), probably because of Osborn's excellent article written in 1953. Clinicians labeled the deflection an Osborn wave in honor of Osborn, one of the first American Heart Association research fellows.

Much has been written about the abnormal J deflection observed in patients with hypercalcemia. Other conditions have been reported to cause an abnormal J deflection, including brain injury, subarachnoid hemorrhage, damage to sympathetic nerves in the neck, and cardiopulmonary arrest from oversedation. Brugada and Brugada reported patients with right bundle-branch block who exhibited noncoronary ST-segment elevation in the right precordial leads and experienced ventricular tachycardia or ventricular fibrillation. A controversy now surrounds this condition because not all of the tracings show classic right bundle-branch block, and some patients might have arrhythmogenic right ventricular dysplasia.

All J-wave deflections do not look alike. Some are merely elevations of ST segments in leads V1 and V2, whereas others are of the spike-and-dome variety. This leads to the conclusion that different mechanisms may be responsible for the size and shape of J-wave deflections.

What blood work do you have to fast for?

Most commonly are blood glucose levels and metabolic tests related to glucose level, and nuclear medicine cardiac studies.