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 nurse is reviewing the laboratory values for a client who is receiving a continuous IV heparin infusion and has an aPTT of 90 seconds. Which of the following actions should the nurse prepare to take?
- A. Administer vitamin K
- B. Reduce the infusion rate
- C. Give the client a low-dose aspirin
- D. Request an INR
Correct answer: B
Rationale: An aPTT of 90 seconds is elevated, indicating a risk of bleeding due to excessive anticoagulation. The appropriate action is to reduce the infusion rate of heparin to prevent further complications. Administering vitamin K is not indicated for an elevated aPTT due to heparin therapy. Giving the client a low-dose aspirin can further increase the risk of bleeding when combined with heparin. Requesting an INR is not necessary for monitoring heparin therapy; aPTT is the more specific test for assessing heparin's therapeutic effect. Therefore, the correct action for the nurse to prepare to take is to reduce the infusion rate of heparin.
3. A nurse is administering insulin glulisine 10 units subcutaneously at 0730 to an adolescent client who has type 1 diabetes mellitus. The nurse should anticipate the onset of action of the insulin at which of the following times?
- A. 0745
- B. 0700
- C. 0645
- D. 0457
Correct answer: A
Rationale: Insulin glulisine has a rapid onset of action, typically around 15 minutes. Therefore, the nurse should expect the onset around 0745. Choice A is correct as it aligns with the expected onset time. Choices B, C, and D are incorrect as they do not match the typical onset time of insulin glulisine.
4. A nurse is administering subcutaneous heparin to a client who is at risk for deep vein thrombosis. Which of the following actions should the nurse take?
- A. Administer the medication into the client's abdomen.
- B. Inject the medication into a muscle.
- C. Massage the site after administering the medication.
- D. Use a 22-gauge needle to administer the medication.
Correct answer: A
Rationale: Heparin is best absorbed and less likely to cause hematomas when administered into subcutaneous tissue, specifically the abdomen, which is a common site for subcutaneous injections. Injecting heparin into a muscle (Choice B) is incorrect as it should be administered subcutaneously. Massaging the site after administering the medication (Choice C) is contraindicated as it can cause tissue damage or bruising. Using a 22-gauge needle (Choice D) is not recommended for subcutaneous injections of heparin; a smaller needle size such as 25-26 gauge is preferred for subcutaneous administration.
5. A client with congestive heart failure taking digoxin reports nausea and refuses to eat breakfast. Which action should the nurse take first?
- A. Encourage the client to eat the toast on the breakfast tray.
- B. Administer an antiemetic.
- C. Inform the client's provider.
- D. Check the client's apical pulse.
Correct answer: D
Rationale: The correct action for the nurse to take first is to check the client's apical pulse. Nausea can be a sign of digoxin toxicity, and one of the early signs of digoxin toxicity is changes in the pulse rate. By checking the client's apical pulse, the nurse can assess if the digoxin level is too high. Encouraging the client to eat or administering an antiemetic may not address the underlying issue of digoxin toxicity. While informing the provider is important, assessing the client's condition through checking the apical pulse should be the immediate priority.
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