ATI LPN
PN ATI Capstone Proctored Comprehensive Assessment 2020 A
1. A nurse is preparing to administer heparin 8,000 units subcutaneously every eight hours. The amount available is heparin injection 10,000 units/mL. How many milliliters should the nurse administer per dose? (Round the answer to the nearest tenth)
- A. 0.8 mL
- B. 0.9 mL
- C. 10.0 mL
- D. 98.0 mL
Correct answer: A
Rationale: To determine the volume of heparin to administer per dose, divide the prescribed dose (8,000 units) by the concentration of heparin available (10,000 units/mL). 8000 units / 10000 units/mL = 0.8 mL. Therefore, the nurse should administer 0.8 mL per dose. Choice B, 0.9 mL, is incorrect as the correct calculation results in 0.8 mL. Choices C and D are significantly higher and incorrect, indicating an inaccurate calculation.
2. A client with peptic ulcer disease reports a headache. Which of the following medications should the nurse plan to administer?
- A. Ibuprofen
- B. Naproxen
- C. Aspirin
- D. Acetaminophen
Correct answer: D
Rationale: Acetaminophen is the preferred analgesic for clients with peptic ulcer disease because it does not cause gastrointestinal irritation, unlike Ibuprofen, Naproxen, and Aspirin, which can exacerbate peptic ulcer symptoms and lead to gastrointestinal complications.
3. A nurse is preparing to administer prochlorperazine 2.5 mg IV. Available is prochlorperazine injection 5 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth)
- A. 0.5 mL
- B. 0.005 mL
- C. 0.05 mL
- D. 5 mL
Correct answer: A
Rationale: To calculate the mL needed, set up a proportion: 5 mg / 1 mL = 2.5 mg / X mL. Cross multiply to find X: 5 * X = 2.5 * 1, X = 2.5 / 5 = 0.5 mL. Therefore, the nurse should administer 0.5 mL. Choice B, 0.005 mL, is incorrect as it doesn't match the calculated result. Choice C, 0.05 mL, is incorrect as it is ten times the correct value. Choice D, 5 mL, is incorrect as it represents the total volume of the entire vial, not the amount needed for the specific dose.
4. A nurse is providing teaching to a newly licensed nurse about administering morphine via IV bolus to a client. Which of the following information should the nurse include in the teaching?
- A. Respiratory depression can occur within 7 minutes after the morphine is administered.
- B. The morphine will peak within a few minutes.
- C. Withhold the morphine if the client has a respiratory rate less than 16/min.
- D. Administer the morphine over 2 minutes.
Correct answer: A
Rationale: The correct answer is A because respiratory depression is a significant risk when administering morphine, and it can occur within 7 minutes after administration. This information is crucial for the nurse to recognize and respond promptly. Choice B is incorrect because the peak effect of morphine via IV bolus is typically reached within a few minutes, not specifically 10 minutes. Choice C is incorrect because withholding morphine based solely on a respiratory rate less than 16/min may not be appropriate without considering other factors such as pain level, oxygen saturation, and overall respiratory status. Choice D is incorrect because administering morphine over 2 minutes may not prevent respiratory depression if it occurs rapidly after administration. Nurses should be vigilant for signs of respiratory depression regardless of the administration duration.
5. A client with chronic kidney failure and an AV fistula for hemodialysis is prescribed epoetin alfa. Which of the following therapeutic effects should the nurse include in the teaching?
- A. Reduces blood pressure
- B. Inhibits clotting of fistula
- C. Promotes RBC production
- D. Stimulates growth of neutrophils
Correct answer: C
Rationale: The correct answer is C: Promotes RBC production. Epoetin alfa stimulates erythropoiesis (red blood cell production) to treat anemia associated with chronic kidney failure. This helps in increasing the hemoglobin levels and improving oxygen-carrying capacity. Choices A, B, and D are incorrect as epoetin alfa does not have direct effects on reducing blood pressure, inhibiting clotting of the fistula, or stimulating the growth of neutrophils.
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