Principles of screening US Medical PG Flashcards - Medical Study Cards
Master Principles of screening with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.
Principles of screening Flashcard Deck - 10 Cards
Flashcard 1: Latent tuberculosis infections result in a positive _____ skin test
Answer: purified protein derivative (PPD+)
Flashcard 2: What test is used to screen for paroxysmal nocturnal hemoglobinuria? _____
Answer: Sucrose test
Flashcard 3: One positive screening test for Cushing syndrome is an increased midnight _____ cortisol
Answer: salivary
Flashcard 4: What test is used to screen for infectious mononucleosis? _____
Answer: Monospot test
Flashcard 5: Levels of Prostate Specific Antigen and Digital Rectal Exam are used as screening tools to detect Prostate Carcinoma before it _____
Answer: spreads
Flashcard 6: A decreased % of which form of PSA is suggestive of prostatic adenocarcinoma? _____
Answer: Free-PSA (cancer makes bound-PSA)
Flashcard 7: With respect to TB, what does a positive PPD indicate?
Answer: current infection, past exposure, BCG vaccinated
Flashcard 8: lead-time bias
Answer: early detection confused with increased survival (e.g. cancer screening)
Flashcard 9: sensitivity (epidemiology)
Answer: The probability that a test detects disease when disease is present.
Extra: Sens = TP/(TP+FN)
Flashcard 10: specificity (test parameter)
Answer: The probability that a test indicates non-disease when disease is absent.
Extra: Spec = TN/(TN+FP)
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