ATI RN
ATI Pharmacology Endocrine and Hematology Questions
Extract:
Question 1 of 5
A nurse is preparing to administer Lactated Ringer's solution IV to infuse at 120 mL/hr for a client who has a respiratory disorder. The drop factor in the manual IV tubing is 60 gtt/mL. The nurse should set the flow rate to deliver how many gtts/min?
Correct Answer: C
Rationale: The correct answer is C: 120 gtt/min.
To calculate the infusion rate in gtts/min, first convert the prescribed rate of 120 mL/hr to gtts/hr by multiplying it by the drop factor of 60 gtt/mL.
120 mL/hr * 60 gtt/mL = 7200 gtts/hr
Next, convert gtts/hr to gtts/min by dividing by 60 (since there are 60 minutes in an hour):
7200 gtts/hr / 60 min = 120 gtts/min
Therefore, the nurse should set the flow rate to deliver 120 gtts/min.
Choice A is incorrect as it is lower than the correct answer.
Choice B is incorrect as it is also lower than the correct answer.
Choice D is incorrect as it is higher than the correct answer.
Question 2 of 5
The physician orders vancomycin hydrochloride 2 g/day by mouth in 4 divided doses. The pharmacy fills the client's prescription with 500 mg vancomycin hydrochloride capsules. The nurse should instruct the client to take______capsule(s) per dose.
Correct Answer: A
Rationale:
Correct
Answer: A
Rationale:
To calculate how many capsules to take per dose, divide the total daily dose (2 g) by the strength of each capsule (500 mg).
1. Convert 2 g to mg: 2 g = 2000 mg
2. Divide 2000 mg by 500 mg per capsule: 2000 mg / 500 mg = 4 capsules per day
3. Since the prescription is to be taken in 4 divided doses, the client should take 1 capsule per dose.
Summary:
B: Incorrect - Not the correct calculation based on the dose and capsule strength.
C: Incorrect - Not the correct calculation based on the dose and capsule strength.
D: Incorrect - Not the correct calculation based on the dose and capsule strength.
E: Incorrect - Not the correct calculation based on the dose and capsule strength.
F: Incorrect - Not the correct calculation based on the dose and capsule strength.
G: Incorrect - Not the correct calculation
Question 3 of 5
A nurse is preparing to administer a client's daily dose of NPH insulin at 0730. The nurse should expect this type of insulin to peak within which of the following timeframes after administration?
Correct Answer: D
Rationale: The correct answer is D: 6 to 10 hours. NPH insulin typically peaks around 6-10 hours after administration. This delayed peak is important to prevent hypoglycemia between meals. It is an intermediate-acting insulin, so it takes longer to reach its peak effect compared to short-acting insulins. Option A (30 minutes to 3 hours) is too short for NPH insulin to peak. Option B (2 to 6 hours) is closer but does not fully capture the peak timeframe. Option C (4 to 5 hours) is not accurate as NPH insulin peaks later.
Therefore, option D is the most appropriate choice based on the pharmacokinetics of NPH insulin.
Question 4 of 5
A nurse is preparing to administer 400 mL of 0.9% sodium chloride IV over 8 hours. The drop factor of the manual IV tubing is 60 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.).
Correct Answer: A
Rationale:
To calculate the drip rate, we use the formula: Volume to be infused (mL) x Drop factor (gtt/mL) / Time (min). In this case, 400 mL x 60 gtt/mL / 480 minutes = 50 gtt/min (rounding to the nearest whole number). This ensures the correct rate of administration, preventing under or over-infusion. Other choices are incorrect because they do not accurately calculate the drip rate based on the given information.
Question 5 of 5
A nurse is caring for a client who has a prescription for digoxin 0.25 mg PO daily. The amount available is digoxin 0.125 mg tablet. How many tablets should the nurse administer per dose? (Round to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.).
Correct Answer: B
Rationale:
To calculate how many tablets to administer, divide the prescribed dose by the available tablet strength. 0.25 mg ÷ 0.125 mg = 2 tablets. Round to the nearest whole number, which is 2.
Therefore, the nurse should administer 2 tablets per dose. Other choices are incorrect as they do not result from the correct calculation method.