.png){kind=logo}
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
.png)