DEFINITIONS Flashcards
procedures to determine physiologic function, homeostasis, and histologic changes; these procedures have been proven to have reproducible results given similar level of disease, changes in function, or homeostasis
lab tests
Within reference range
normal (varies with laboratory)
Outside reference range
abnormal
may need several tests to confirm diagnosis
One test is usually NOT conclusive
test’s ability to produce the correct result
Accuracy
reproducibility, how often the test produces the same result
Precision
ability of test to correctly identify individuals who have a disease
Sensitivity
results which give a negative finding which is actually positive
False negatives
ability of the test to correctly exclude individuals who do not have a given disease
Specificity
results which give a positive finding which is actually negative
False positive
name this office test:
Checks non-fasting blood sugar quickly
Screens for suspected diabetes or checks random levels on diabetics
Blood sugar will vary with foods, fluids or medications
Random glucose finger stick (glucometer)
name this office test:
fungal organisms are suspected
dermatophytes
KOH dissolves epithelial cells to reveal hyphae
amount of specimen and technique
KOH wet mount prep
name this office test:
Certain bacteria with fluoresce characteristic color
- Erythrasma - coral red
- Pseudomonas - green
Usually performed on the feet and in webspaces
Wood’s light examination
name this office test:
Requires a urine specimen
A test strip is utilized and dipped into the urine and then compared to the control for color changes
Checks for blood, glucose, protein, pH, etc.
Does not provide values
Dipstick urinanalysis
name this specimen for testing?
for suspicious lesions
Punch biopsy or shave biopsy
