Introduction to Lab Testing
Specimen Collection
Problems in Sample Handling
100
These are 3 routine laboratory panels or tests that are often run on both healthy and sick patients to rule out a wide range of diseases. Together, these 3 make up what's called a "minimum database."
What are the CBC, chemistry panel, and UA?
100
The blood product used for most routine chemistries.
What is serum?
100
Chemistry tests may be run on plasma with this anticoagulant.
What is heparin?
200
This kind of test stimulates or suppresses a metabolic process, then measures the body's response.
What is a dynamic test?
200
This tube is not suitable for therapeutic drug monitoring, because drug in the serum may bind and be falsely decreased.
What is the SST?
200
Chemistry tests run on plasma with this anticoagulant will have falsely decreased calcium and magnesium levels that are incompatible with life.
What is EDTA?
300
The higher this indicator of reliability is, the more likely it is that an animal that tests positive truly DOES HAVE the disease.
What is specificity?
300
This anticoagulant tube is used for coagulation tests run at reference labs, and must be full for accurate results.
What is the BTT?
300
An increase in this serum component often occurs after eating and will cause RBC hemolysis.
What is lipemia?
400
The higher this indicator of reliability is, the more likely it is that an animal that tests negative truly DOES NOT HAVE the disease.
What is sensitivity?
400
This anticoagulant is ideal for CBCs and cytology because it preserves cell morphology.
What is EDTA?
400
This serum/plasma abnormality can occur either "in vivo" (caused by a disease in the patient) or "in vitro" (an artifact caused most often by poor sample handling).
What is hemolysis?
500
These are the four ways that information from lab tests can be used.
What are: 1) Assessing wellness/Establishing baselines 2) Screen for disease 3) Definitively diagnose disease, and 4) Monitor response to therapy
500
This anticoagulant is used for blood gas analysis.
What is heparin?
500
This artifact is caused by a delay in separating serum from the clot and results in a falsely decreased glucose and false acidemia.
What is covert hemolysis?
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