ATI RN
ATI RN Comprehensive Exit Exam
1. A client is receiving heparin therapy. Which of the following laboratory results indicates the client is receiving an effective dose of heparin?
- A. INR 1.5
- B. aPTT 60 seconds
- C. Platelets 150,000/mm³
- D. Potassium 4.0 mEq/L
Correct answer: B
Rationale: An aPTT of 60 seconds indicates the client is receiving an effective dose of heparin. The activated partial thromboplastin time (aPTT) measures the time it takes for a clot to form, and a therapeutic range for heparin therapy is usually 1.5 to 2 times the control value, which is around 60-80 seconds. An INR of 1.5 is not related to heparin therapy, as it is commonly used to monitor warfarin therapy. Platelet count and potassium levels are not direct indicators of the effectiveness of heparin therapy.
2. A nurse is assessing a client who has schizophrenia and is taking chlorpromazine. Which of the following findings should the nurse identify as an adverse effect of the medication?
- A. Weight gain
- B. Dry mouth
- C. Sedation
- D. Diarrhea
Correct answer: C
Rationale: The correct answer is C: Sedation. Chlorpromazine, an antipsychotic medication, commonly causes sedation as an adverse effect. Weight gain (choice A) is a potential side effect of some antipsychotic medications, but it is not specifically associated with chlorpromazine. Dry mouth (choice B) is a common anticholinergic side effect of many medications but is not a prominent adverse effect of chlorpromazine. Diarrhea (choice D) is not a typical adverse effect of chlorpromazine.
3. A nurse is assessing a client who is 2 days postoperative following abdominal surgery. Which of the following findings should the nurse report to the provider?
- A. Serosanguineous drainage on the dressing
- B. Heart rate of 88/min
- C. Urine output of 30 mL/hr
- D. Blood pressure of 110/70 mm Hg
Correct answer: C
Rationale: The correct answer is C because a urine output of 30 mL/hr indicates oliguria, which can be a sign of dehydration or kidney impairment postoperatively. This finding should be reported to the provider for further evaluation. Choices A, B, and D are within normal parameters for a client who is 2 days postoperative following abdominal surgery and do not raise immediate concerns. Serosanguineous drainage on the dressing is an expected finding in the early postoperative period, a heart rate of 88/min is within the normal range, and a blood pressure of 110/70 mm Hg is also within normal limits.
4. A nurse is caring for a client who is receiving a continuous heparin infusion. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the therapy?
- A. Serum potassium
- B. Platelets
- C. aPTT
- D. INR
Correct answer: C
Rationale: The correct answer is C: aPTT. Monitoring the activated partial thromboplastin time (aPTT) is crucial when a client is receiving heparin therapy. The aPTT reflects the clotting time and helps assess the effectiveness of heparin in preventing clot formation. Keeping the aPTT within the therapeutic range ensures that the medication is working optimally. Choices A, B, and D are incorrect because serum potassium, platelets, and INR are not direct indicators of heparin's effectiveness or therapeutic range.
5. A client prescribed clozapine is receiving discharge teaching from a nurse. Which statement by the client indicates an understanding of the teaching?
- A. “I should report a sore throat to my provider.”
- B. “I should avoid drinking grapefruit juice while taking this medication.”
- C. “I should take this medication with food.”
- D. “I should avoid taking this medication with food.”
Correct answer: A
Rationale: The correct answer is A. Clozapine can cause agranulocytosis, a serious condition that decreases the number of white blood cells. Reporting a sore throat is crucial as it could be a sign of infection. Choice B is incorrect because there is no specific interaction between clozapine and grapefruit juice. Choice C is incorrect because clozapine is usually taken without regard to meals. Choice D is incorrect as clozapine is generally taken without food to enhance absorption.
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