1. A nurse needs to administer 0.5 mg of a drug to a patient. The drug is

available in a concentration of 2 mg/mL. How many mL of the drug

should the nurse give? (Round your answer to the nearest tenth)

A) 0.2 mL

B) 0.25 mL

C) 0.4 mL

D) 0.5 mL

Answer: B) 0.25 mL

Rationale: To find the volume of the drug, use the formula V = D/C,

where V is the volume, D is the dose, and C is the concentration. Plug in

the given values and solve for V: V = 0.5/2 = 0.25 mL.

2. A patient has a body mass index (BMI) of 27.5 kg/m^2. What is the

patient's weight in pounds if the patient is 5 feet 6 inches tall? (Round

your answer to the nearest whole number)

A) 150 lbs

B) 165 lbs

C) 171 lbs

D) 180 lbs

Answer: C) 171 lbs

Rationale: To find the weight in pounds, use the formula W = BMI x H^2

x 703, where W is the weight, BMI is the body mass index, H is the height

in inches, and 703 is a conversion factor. Convert the height to inches: 5

feet 6 inches = 66 inches. Plug in the given values and solve for W: W =

27.5 x 66^2 x 703 / (10000) = 170.8 lbs. Round to the nearest whole

number: 171 lbs.

3. A patient has a blood pressure of 150/90 mmHg. What is the patient's

pulse pressure?

A) 60 mmHg

B) 75 mmHg

C) 90 mmHg

D) 120 mmHg

Answer: A) 60 mmHg

Rationale: To find the pulse pressure, subtract the diastolic pressure from

the systolic pressure: 150 - 90 = 60 mmHg