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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 the medical abbreviation INR mean?

The INR, or international normalized ratio, is a measure of blood clotting time. To calculate it, you divide the prothrombin time of the patient's sample by the prothrombin time of a standard sample from the manufacturer to get a ratio (i.e. a unitless measure). A factor is applied to the result to account for differences in the manufacturer's samples so that INRs are comparable from lab to lab.

The INR is used to measure clotting time in people on warfarin (Coumadin) to make sure that they're taking enough to prevent clots from forming. The INR also can become abnormal in certain types of liver disease or blood diseases.
is inrtest sold in Greece
International normalized ratio
is inrtest sold in Greece

What is a hemoquant blood test used for?

Hemoquant, another fecal occult blood test, is used to detect as much as 500 mg/g of blood in the stool. Like the Hemoccult, the Hemoquant test is affected by red meat. It is not affected by chemicals in vegetables.

How many bones are in your finger?

The number of bones in the first four fingers are three, and two in the thumb, these are called phalanges. Another bone, called a metacarpal, connected the finger to the wrist through the palm for each of the five fingers (including the thumb).

If you put it all together, you have 14 bones in all your fingers combined :)

that first part is wrong and it is 27 bones in your entire hand.

wtf you guys are wrong >=(
There are 3 bones in each finger, the proximal phalanx, middle phalanx, and distal phalanx. There are only 2 bones in the thumb, however, the proximal and distal phalanx.

What antibiotics should you not have if you have pus oozing out of your leg?

Only laboratory tests can determine that. You should trust this decision to the health care professional who is treating your leg, as long as they have taken, or ordered a lab to take, samples of the pus for lab cultures to determine exactly what bacteria is causing the infection. You should not be taking the wrong antibiotic, which would be the ones that can not kill your bacteria. That can only be determined with lab tests. Unless that is known, then the correct antibiotic may not have been prescribed.

If lab cultures have not been done, or if they were done and you are taking antibiotics but are continuing to see an increase in pus or other symptoms of infection, you should see a doctor for retesting to be sure the right antibiotics are being used. If you have not reported the pus to your doctor, then you should immediately.

The only reasons antibiotics of certain kinds should not be ordered to treat your leg would be that you need a different kind for the exact bacteria causing your infection (so lab cultures are needed), or if you are allergic to the one ordered, or if you have some other medication or condition that makes the preferred antibiotic unsafe to be used at the same time. An infectious disease specialist may need to consult on your care.

There are many factors to be considered. If you are not yet under the care of a doctor for this condition, you should be right away. Infections of the extremities can be very serious and hard to heal, especially in people with diabetes or a heart or kidney condition, or circulatory/blood vessel disease. It might be that a specialist doctor, like an infectious disease specialist or a wound care specialist, may be needed.

The presence of pus means that your body's immune system is battling the infection and is winning some battles, but the right antibiotics will help your body win the war faster.

Bottom line:

See a doctor if you have not, or report the pus and other symptoms to the one you have seen if you have not yet told them about it. Be sure cultures are taken for a lab to determine what antibiotic is right for the germ causing your infection, learn how to clean and care for the infection and wound, find out how to prevent spreading it to other places in your body or to other people. Take the antibiotics exactly as prescribed and don't stop taking them until all the medicine is gone. If you get a fever over 101 F. (38.33 C.), especially while on antibiotics, or if you get chills or vomiting or more new symptoms including hardness of the leg, increased swelling, or redness or other discoloration in your foot or leg, increased pus, or streaks in the leg, then get urgent care by a professional.

What does a percent of 62 in a mcv mean?

It is the size of your red blood cells. 62 means your red blood cells are small, which can be caused by a number of things such as iron deficiency anemia and thalassemias.

What is urine culture and sensitivity?

Urine culture is when a doctor orders a urine specimen to be evaluated in a lab to determine exactly what kind of bacteria are living in it and causing problems. "Culture" means to grow, and they literally grow the bacteria so that they can test different antibiotics on it. Some antibiotics may kill the bacteria, and some antibiotics have no effect on the bacteria. This is the "sensitivity" part. If a bacteria is sensitive to an antibiotic, it would be a good choice for treatment of the infection. If it is not sensitive, the it is resistant to the antibiotic and it won't produce a cure.

If you have a tsh level of 71 is this bad?

Yes this is very high. The references are 0,35-4,94.

It means your thyroid gland is overproducing - hyperthyreoidism

Can they test your pee for alcohol?

The most common tests are immunoassays that test for either alcohol or its metabolites. Blood tests are another, ordinarily used after traumatic events such as traffic crashes. Other tests, normally used for confirmation, involve photometric analysis of either urine or blood.

The over-the-counter tests, and those used by most screening agencies, are immunoassays, where antibodies sensitive to the chemical being tested for are embedded in the test strip. Their reaction causes the color change.

How are skin biopsies therapeutic?

Skin biopsies also can serve a therapeutic purpose. Many skin abnormalities (lesions) can be removed completely during the biopsy procedure.

What is the purpose of drinking water for an abdominal ultra sound?

(apparently) you need a full bladder so that there is a dark area (shadow) so that they can then see the rest of your insides more clearly.