PHCH 667 Exam 1 Questions Answered Correctly Latest

PHCH 667 Exam 1 Questions Answered Correctly Latest accuracy - Answers mean, how close to actual value precision - Answers Standard deviation, how close values are to each other the most important key parameters of a QUALITATIVE test - Answers sensitivity, specificity, predictive value, accuracy the key parameters of a QUANTITATIVE test - Answers accuracy, precision, reference values, critical values The reference range most acceptable for quantitative tests - Answers within 95% of the mean value for quantitative tests, critical values typically are considered those that occur where? - Answers so far outside the reference range as to portend mortality for a qualitative test, sensitivity is determined by - Answers TP = TP/(TP + FN) for a qualitative test, specificity is determined by - Answers TN = TN/(TN + FP) predictive values for a negative qualitative test is best described as: - Answers NPV = TN/(TN + FN) predictive values for a positive qualitative test is best described as: - Answers PPV = TP/(TP + FP) Waiver of a test by Clinical Laboratory Improvement Amendments (CLIA) indicates that the test is... - Answers so simple and accurate that likelihood of error is negligible and can be cleared by the FDA for home use which sample (specimen) has the longest window for being able to detect drug use? - Answers hair when does LH surge occur relative to ovulation? - Answers 30-36 hours before ovulation which of the following stimulates promotes fertility in both men and women? - Answers FSH test which OTC test can be used to detect pregnancy? - Answers Human Chorionic Gonadotropin (HCG) test what is typically the soonest pregnancy can be detected using the HCG test? - Answers 7-10 days after conception what type of test is most often available OTC for a home pregnancy test? - Answers immunochromatographic test (sandwich ELISA) which most likely interferes with a home pregnancy test? - Answers FSH which of the following conditions could lead to depletional hyponatremia? - Answers excessive sweating, diarrhea, vomiting which of the following is NOT used to measure electrolytes in a clinical laboratory? - Answers immunochromatographic method a decrease in blood pH is called ________, and this can results in an intracellular shift of potassium to cause __________. - Answers acidosis, hyperkalemia the major EXTRACELLULAR fluid electrolyte is? - Answers sodium Ca2+ levels must be corrected in blood samples because of what feature? - Answers binding by serum albumin hyponatremia is.... - Answers decreased blood sodium levels