Which of the following is NOT one of the eight types of urine specimens that might be collected?
a. timed specimen
b. frozen specimen
c. catheterized specimen
d. suprapubic specimen
b
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The Friedewald equation is used to calculate the concentration of LDL cholesterol in a sample. In cases of suspected lipid disorders, the Friedewald equation should not be used. Which of the following explains why?
A) In lipid disorders, the measure of total cholesterol frequently is less than the measure of HDL, resulting in a negative LDL value. B) LDL values obtained from the Friedewald equation do not include the concentration of solid, crystalline LDL. C) The calculation does not take into account interfering concentrations of gaseous CO2. D) The Friedewald equation assumes that nearly all the circulating TG is in VLDLs.
Peptic ulcers can be caused by extended NSAID use because NSAIDs block ________, reducing prostaglandin production
a. all COX enzymes b. only COX-1 enzymes c. only COX-2 enzymes d. only COX-3 enzymes
Which of the following is NOT a characteristic of urgent care centers??
A) Generally no appointment system B) ?Extended hours/days of operation C) Often "notforprofit," charging reduced fees D) ?Provide routine care or treat minor emergencies
The payment system used by Medicare is based on ________.
A. the physicians' minimum charges B. the price of medical equipment used C. prevailing rates in the region D. fee-for-service agreements E. resources