In the context of diagnostic tests, what does "prevalence" refer to?
A) The ability of a diagnostic test to detect only the medical condition in question
B) The ability of a diagnostic test to detect the medical condition in question in every patient who has the condition
C) The frequency of the condition in the population tested at a given time
D) The quantity that tells the probability that a result from a diagnostic test is correct
C
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Prescription calls for 20 mEq of NaCl for TPN. A stock vial of 5 mEq/mL is available. How many mL of NaCl should be added to the TPN?
A) 100 mL B) 15 mL C) 5 mL D) 4 mL
Which of the following is likely to occur when decreasing the expiratory positive airway pressure in the patient being ventilated using noninvasive ventilation?
a. Improved PaO2 b. Increased functional residual capacity c. Increased tidal volume d. Increased inspiratory positive airway pressure