Quantitative Reasoning Flashcards

A blood pressure reading of 120/80 mmHg is recorded. What is the pulse pressure (difference between systolic and diastolic)?

Answer: 40 mmHg

Pulse pressure = systolic − diastolic = 120 − 80 = 40 mmHg.

A nurse completes 8 patient assessments in 2 hours. If the shift is 10 hours long, how many assessments can she complete at the same rate?

Answer: 40

Rate is 4 assessments/hour; 4 × 10 = 40 assessments in the full shift.

A research study shows that 3 in 200 patients experience a side effect. What is this as a percentage?

Answer: 1.5%

3/200 × 100 = 1.5%, so the side-effect rate is 1.5%.

A ward has 30 beds. If 70% are occupied and each occupied bed generates $450 per day, what is the daily revenue?

Answer: $9,450

70% of 30 = 21 beds occupied; 21 × $450 = $9,450 per day.

A patient takes 2 tablets of 250 mg three times a day. What is their total daily dose in grams?

Answer: 1.5 g

2 tablets × 250 mg × 3 times = 1,500 mg = 1.5 g per day.

A laboratory processes 480 samples in an 8-hour day. If throughput increases by 25%, how many samples will be processed per hour after the increase?

Answer: 75

Original rate: 480/8 = 60 samples/hour; 60 × 1.25 = 75 samples/hour after the increase.