• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/28

Click to flip

28 Cards in this Set

  • Front
  • Back
What are the major divisions of clinical lab medicine and what do they do?
a) blood bank - type, screen, compatibility
b) microbiology- ID bacteria, parasites, fungi & susceptibility testing
b-2) virology (separate micro) - ID viruses
c) chemistry - basic tests + tox
d) hematology - cell counts, coag testing
e) urinalysis - UTI, etc
f) immunology- HIV, measles, etc, allergies
g) specialty - flow cytometry, molecular diagnostics, cytogenetics, research
The patient with type ___ blood has (1)___ antibodies and (2)___ antigens:
a) Type A
b) Type B
c) Type AB
d) Type O
a) anti-B antibodies, A antigens
b) anti-A antibodies, B antigens
c) no antibodies, A and B antigens
d) anti A and B antibodies, no antigens
What is the governing aspect of clinical lab medicine?
CLIA - 1988: DOHHS - requires certifications of registrations to govern lab practices, standards, QA and QC documentation, etc
___ is a test result that correctly classifies individuals with disease.
True positive
___ is a test result that incorrectly classifies healthy people as having disease.
False Positive
___ is a test result that correctly classifies the healthy patient.
True negative
____ is a test result that incorrectly classifies the diseased individual as being healthy.
False negative
___ is a measure of a test's positivity in disease. A test with 100% ___ doesnt miss anyone (no false negatives - may have false pos).
Sensitivity
____ is a measure of a test's negativity in the absence of disease. A test with 100%__ does not misclassify healthy people as having disease (no false positives - may have false negs)
Specificity
___ is the probability that any given individual in a defined population has a disease based on a positive test result.
Positive Predictive Value
___ is the probability that a patient will not have the disease based on a negative test result/
Negative predictive value
What steps should you take if you have a needle exposure?
1. wash immediately with soap and water
2. notify supervisor
3. complete paperwork required
4. go to ER or Employee health
In order to reduce needlesticks, you should avoid ____, and realize that ____ system is the safest
1. butterflies
2. vacuum tube and holder
What is the Most important step in phlebotomy/ venipuncture?
Patient Identification
Why is it important not to use a tube that was dropped?
It may lose the vacuum
Plastic red-top tubes contain _____ (glass ones may not)... and produces ____
1. clot activator (glass ones didn't need it)
2. serum
All the tubes except the plain red top produce ____ and have what type of additive?
1. plasma
2. anti-coagulants
Describe the properties of the light blue test tube:
a) additive
b) tests used for
c) how to get correct ratio
a) Sodium Citrate
b) Protime, PTT, INR, specific coagulation factor testing
c) fill completely to get correct ratio,
The green stopper tube contains ____ and is used for ____.
1. heparin
2. "stat" chemistries
The lavender stopper tube contains ____ and is usually used for ____.
1. EDTA
2. Hematology (blood counts)
The gray stopper tube contains ____ and is used for ___
1. NaF, Koxalate
2. Preserves glucose up to 3 days (important if can't spin down blood righ taway), also for ethanol levels
How long should red-tops sit to clot before spinning down?
30 mins
What is the first choice for phlebotomy? Second? Where to avoid?
1. median cubital
2. cephalic
3. Avoid basilic (artery below, nerve bundle)
How many attempts at venipuncture should you make before trying to have someone else do it?
2
What type of system is most useful in children, elderly, or hand veins?
butterfly
Why do you need to throw the first tube away if you begin with a blue top?
first part of draw is tissue thromboplastin so would mess up testing.
___ can occur due to leaving the tourniquet on too long, and may cause false enzyme results, albumin, and RBC counts also off.
Hemoconcentration
____ occurs when RBCs are damaged and release hemoglobin. The serum or plasma will look red or pink.
Hemolysis (affects K, LDH, etc)