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 providing teaching to a client who is experiencing preterm contractions and dehydration. Which of the following statements should the nurse make?
- A. Dehydration is treated with calcium supplements
- B. Dehydration can increase the risk of preterm labor
- C. Dehydration can increase gastroesophageal reflux
- D. Dehydration is caused by a decreased hemoglobin and hematocrit
Correct answer: B
Rationale: The correct statement the nurse should make is that dehydration can increase the risk of preterm labor. Dehydration reduces amniotic fluid and uterine blood flow, potentially leading to preterm contractions. Choice A is incorrect because dehydration is not treated with calcium supplements but rather with adequate fluid intake. Choice C is incorrect as dehydration does not directly increase gastroesophageal reflux. Choice D is incorrect as dehydration is not caused by decreased hemoglobin and hematocrit levels but rather by insufficient fluid intake or excessive fluid loss.
3. A client is starting therapy with a statin medication. Which of the following instructions should the nurse include?
- A. Take the medication on an empty stomach.
- B. Avoid consuming grapefruit juice.
- C. Increase intake of dietary fiber.
- D. Take the medication in the morning.
Correct answer: B
Rationale: The correct instruction the nurse should include is to advise the client to avoid consuming grapefruit juice when taking statin medication. Grapefruit juice can interfere with the metabolism of statins, leading to an increased risk of adverse effects. Taking the medication on an empty stomach (Choice A) or in the morning (Choice D) is not specifically necessary for statins. While increasing dietary fiber intake (Choice C) is generally beneficial for health, it is not a specific instruction related to taking statin medication.
4. In an emergency department following a community disaster, a healthcare provider is performing triage for multiple clients. To which of the following types of injuries should the provider assign the highest priority?
- A. Below-the-knee amputation.
- B. Fractured tibia.
- C. 95% full-thickness body burn.
- D. 10 cm laceration to the forearm.
Correct answer: A
Rationale: During disaster triage, clients with severe injuries that are immediately life-threatening and have a high likelihood of mortality without intervention are assigned the highest priority. A below-the-knee amputation falls into this category as it indicates a critical injury that requires immediate attention to prevent further complications or loss of life. Fractured tibia, a 95% full-thickness body burn, and a 10 cm laceration to the forearm, while serious, do not pose the same level of immediate life-threatening risk as a below-the-knee amputation in the context of disaster triage.
5. A nurse is assessing a client who has heart failure and is receiving digoxin. Which of the following findings should the nurse identify as an indication of digoxin toxicity?
- A. Bradycardia.
- B. Tachycardia.
- C. Nausea.
- D. Blurred vision.
Correct answer: D
Rationale: Corrected Rationale: Blurred vision is a classic sign of digoxin toxicity, indicating a potential overdose. It is crucial to recognize this symptom promptly and report it to the healthcare provider for immediate intervention. Bradycardia and nausea are common side effects of digoxin but not specific indicators of toxicity. Tachycardia is unlikely in digoxin toxicity since it usually causes a decrease in heart rate.
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