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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 an INR of 3.5 indicate?
An INR of 3.5 is a bit above the goal of 2.0 - 3.0 for proper anticoagulation to be achieved - for those taking warfarin (or Coumadin = brand name) especially.
What can a tube axial fan be used for?
It is used at such places where we need to have high volume Or high CFM with low velocity and it can maintain its velocity till 5 meters of length
How do you pee in a cup for men?
For random specimen testing, it is best to collect a sample that is midstream. This means that after wiping your urethral opening, you should begin peeing in the toilet, collect some urine in the cup, and then finish urinating into the toilet.
You should have instructions provided when you are collecting and if you have any questions, ask the nurse or health professional who gave you the sample container, they are able to answer any collection questions you have or assist you if need be.
Which laboratory finding is indicative of anemia?
Low hemoglobin and low hematocrit are indicative of anemia.
Why is it important to wear closed-toe shoes in a laboratory?
It is important to wear closed shoes so it will prevent any accidents that may occur and injure or damage your foot.
What are the PSA levels and what do they mean?
PSA stands for prostate specific antigen. It is a sensitive indicator for presence or absence of prostate cancer. (However, there can be false positives and false negatives.)
PSA cut-offs are set around 4.0. However, it is the rate of rise that should be paid close attention to. If three consecutive rises in the PSA occur, your physician should recommend further testing, including DRE (digital rectal exam) and possibly rectal ultrasound (with or without ultrasound guided biopsy of the prostate gland.
Consult your physician for further details, in your particular circumstance.
What blood types and rh facors produce o neg?
O negative blood type is produced when a person inherits two O alleles and has a negative Rh factor. This means the person's blood lacks A, B, and Rh antigens, making it compatible with all blood types during transfusions.
What does well differentiated mean?
when referring to tumors, it means it closely resembles the appearance of the parent tissue. For example, a well differentiated colon carcinoma closely resembles the benign glands of the colon
Would you draw blood from the median first?
The most common site for a blood draw is the antecubital vein.
Why is it essential that the smears initially be air-dried?
if not do this and fix it , it will be wash off when stain it.
Do you fast for a hematicrit test?
You do not need to fast for a hematocrit test, though it is advised that you are well hydrated, since dehydration can falsely elevate your result.
Can a modified barium swallow test diagnose a swallowing problem?
Yes it can. A Modified Barium Swallow is usually done by a qualified Radiologist and Speech Pathologist and it includes watching a patient eat and drink a variety of consistancies. The food items are mixed with Barium Sulphate (so the food/drink can show up on xray) to see if there is a swallowing problem, why and if there are any techniques and therapies to compensate and improve the swallow.
the bacteria will dentaure and die off
Why were the S bacteria not the R bacteria virulent?
The S bacteria are surrounded by a capsule, so it is not engulfed by the host's white blood cells. That means that it is able to proliferate and spread.
The R bacteria lack the capsule (like the mutant S bacteria), so the white blood cells are able to detect and eliminate them.
What is involved when your MCV is high?
A high mean corpuscular volume (MCV) typically indicates that the red blood cells are larger than normal. This can be caused by conditions such as vitamin B12 or folate deficiency, alcoholism, liver disease, or certain types of anemia. Further testing is usually required to determine the underlying cause.
