Medical Technologist General Information Flashcards
7 cards from real Medical Technologist Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Medical Technologist General Information flashcards as text
Which chain of custody procedure is MOST critical when handling forensic or medicolegal specimens?
Answer: Documenting every person who handled the specimen with time and date
Chain of custody requires continuous documentation of every individual who handled the specimen to ensure legal admissibility of results.
A laboratory's accuracy is BEST evaluated by:
Answer: Participating in external proficiency testing programs
External proficiency testing (PT) compares a laboratory's results to peer laboratories and reference values, providing an objective assessment of accuracy.
Pre-analytical variables that can affect laboratory test results include all of the following EXCEPT:
Answer: Instrument calibration frequency
Instrument calibration is an analytical variable occurring within the laboratory; patient status, transport, and collection technique are pre-analytical variables.
Which of the following correctly describes the difference between sensitivity and specificity of a laboratory test?
Answer: Sensitivity = ability to detect true positives (diseased); specificity = ability to detect true negatives (healthy)
Sensitivity (true positive rate) reflects a test's ability to correctly identify diseased individuals; specificity (true negative rate) reflects identification of healthy individuals.
The principle of atomic absorption spectrophotometry (AAS) is based on:
Answer: Absorption of specific wavelengths of light by ground-state atoms
AAS measures the amount of light absorbed by free ground-state atoms at a wavelength specific to each element, enabling quantification of metals like lead or copper.
When a laboratory implements a new test, which validation step confirms the test's ability to detect low concentrations of analyte?
Answer: Limit of detection (LoD) determination
The limit of detection (LoD) establishes the lowest analyte concentration reliably distinguished from blank/noise with a defined statistical confidence.
According to OSHA's Bloodborne Pathogen Standard, which of the following is required for laboratory personnel?
Answer: Hepatitis B vaccination offered at no cost to the employee
OSHA's Bloodborne Pathogens Standard (29 CFR 1910.1030) requires employers to offer Hepatitis B vaccination at no cost to all at-risk employees.