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Cards In This Set
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The lab manager receives a complaint from the ICU about turnaround times for coag tests. the first step in problem solving should bea. gather data on current times by shiftb. talk to staffc. perform root cause analysisd. draw a process map to send to ICU explaining why it takes so long?
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A. gather data on current times by shift
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Preanalytical variables in lab testing includea. result accuracyb. report delivery to ordering physicianc. test turnaround timesd. specimen acceptability
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D. specimen acceptibility
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Data for a new procedure is as follows:10000 procedures per yr$97,000 for equipment cost7yr expected life$20,000/yr for reagents30.0 cap units per procedure = 30 minavg wage of $10.75/hr
cost per test isa. $2.00b. $5.38c. $7.38d. $8.77 |
D. $8.77
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Mean value of a series of hemoglobin controls were found to be 15.2g/dl with a standard dev. of 0.20. acceptable control range is + or - 2 sdwhich of the following represents the allowable limits for the ctla. 14.5-15.5g/dlb. 15.0-15.4 g/dlc. 15.2-15.6g/dld. 14.8-15.6g/dl
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D. 14.8-15.6g/dl
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A chem profile that includes electrolytes, glucose, BUN and creatinine is ordered on a 80yo pt in the DEM. how would the lab submit the charge for the tests for reimbursement by medicarea. submit as one testb. submit as each test separatelyc. submit as 4 indiv. testsd. pt will need to submit for payment
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A. submit as one test
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How many mil of a 2000mg/dl glucose stock solution are needed to prepare 100 ml of a 150mg/dl working solutiona. 1.5mlb. 7.5 mlc. 15.0 mld. 25.0 ml
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B. 7.5 ml
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Which of the following conditions is cause for rejection of an analytical runa. 2 consec ctls greater than 2 SD above or below the meanb. 3 consec controls greater than 1 SD above meanc. 3 ctls steadily inc in value but less than 1 SD from meand. one ctl above +1SD and the other below -1SD
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A. 2 consec ctls greater than 2 SD above or below the mean
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A comparison of methods for determination of hematology instrument is categorized in which domain of educational objectivesa. affectiveb. psychomotorc. cognitived. behavioral
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C. cognitive
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Application of a tourniquet for longer than 3 min during venipuncture will result in a. dec hemoconcentration around puncture siteb. no change in blood composition if fist pumping is avoidedc. sig dec in hctd. inc in hemoconc in sample
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D. inc in hemoconc in the sample
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What is accuracy vs. precision?
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Accuracy is the agreement of results to the true valueprecision is reproducibility
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What % of the population will fall into the range 2 SD?
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95%
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What is sensitivity vs. specificity?
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Sensitivity is false negs, ability to detect small amts of a substancespecificity is false pos, ability to measure only the substance of interest
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What is the calculation to determine the % specificity and % sensitivity?
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% sensitivity = true pos/(true pos + false neg) x 100% specificity = true neg/(true neg + false pos) x 100
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What is the difference between ctls and stds?
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Ctls run after calibration, run once per shift and must be in mean +/- 2 SDstds are used to calibrate and have one value
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What is the difference between assayed ctls and unassayed ctls?
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Assayed ctls the company tells you mean and std devunassayed ctls you have to determine the mean and st dev
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