HESI RN
HESI RN CAT Exit Exam
1. The nurse is caring for a client who is receiving heparin therapy. Which laboratory value should the nurse monitor to determine the effectiveness of the therapy?
- A. Prothrombin time (PT)
- B. Partial thromboplastin time (PTT)
- C. International normalized ratio (INR)
- D. Activated partial thromboplastin time (aPTT)
Correct answer: C
Rationale: The correct answer is C, International Normalized Ratio (INR). While INR is commonly used to monitor the effectiveness of warfarin therapy, in the case of heparin therapy, the Partial Thromboplastin Time (PTT) is the preferred test. Choice A, Prothrombin Time (PT), measures the activity of the extrinsic pathway of coagulation and is not the best choice for monitoring heparin therapy. Choice D, Activated Partial Thromboplastin Time (aPTT), is similar to PTT and is used to monitor heparin therapy, but PTT is the more specific test. Therefore, monitoring PTT is crucial in determining the effectiveness and safety of heparin therapy.
2. Which instruction should the nurse provide to an elderly client who is taking an ACE inhibitor and a calcium channel blocker?
- A. Wear long-sleeved clothing when outdoors
- B. Report the onset of sore throat
- C. Eat plenty of potassium-rich food
- D. Change the position slowly
Correct answer: D
Rationale: The correct instruction for an elderly client taking both an ACE inhibitor and a calcium channel blocker is to change positions slowly. Both medications can lead to orthostatic hypotension, a sudden drop in blood pressure when changing positions, which can increase the risk of falls. Instructing the client to change positions slowly helps prevent falls. Wearing long-sleeved clothing when outdoors does not directly relate to the medication combination. Reporting the onset of a sore throat is important for monitoring potential side effects but is not specific to these medications. While potassium levels should be monitored with ACE inhibitors, eating plenty of potassium-rich foods without guidance can lead to hyperkalemia, a potential side effect of ACE inhibitors.
3. The nurse is caring for a client who is 2 days post-op following an abdominal hysterectomy. The client reports feeling something 'give way' in the incision site and there is a small amount of bowel protruding from the wound. What action should the nurse take first?
- A. Apply a sterile saline dressing to the wound
- B. Notify the healthcare provider
- C. Administer pain medication
- D. Cover the wound with an abdominal binder
Correct answer: A
Rationale: In this situation, the priority action for the nurse is to apply a sterile saline dressing to the wound. This helps to cover and protect the exposed bowel, preventing infection and maintaining a moist environment for wound healing. Option B, notifying the healthcare provider, is important but should come after addressing the immediate need of covering the wound. Administering pain medication (option C) and covering the wound with an abdominal binder (option D) are not appropriate initial actions for this situation.
4. A client with a history of seizures is being discharged with a prescription for phenytoin (Dilantin). Which instruction should the nurse provide this client?
- A. Take the medication with meals
- B. Avoid alcohol while taking this medication
- C. Limit sodium intake
- D. Take the medication at bedtime
Correct answer: B
Rationale: The correct instruction is to advise the client to avoid alcohol while taking phenytoin. Alcohol can interact with phenytoin, making it less effective and leading to increased side effects. Taking the medication with meals (Choice A) may help reduce gastrointestinal upset but is not the most crucial instruction for this medication. Limiting sodium intake (Choice C) is not directly related to phenytoin therapy. Taking the medication at bedtime (Choice D) is not a standard instruction for phenytoin administration.
5. A client who has had three spontaneous abortions is requesting information about possible causes. The nurse's response should be based on which information?
- A. Chromosomal abnormalities are the most common cause of early spontaneous abortions
- B. Incompetent cervix can cause spontaneous abortions
- C. An infection can cause spontaneous abortions
- D. Nutritional deficiencies are the most common cause of early spontaneous abortions
Correct answer: A
Rationale: The correct answer is A: Chromosomal abnormalities are the most common cause of early spontaneous abortions. Spontaneous abortions, also known as miscarriages, often occur due to chromosomal abnormalities in the fetus. These abnormalities are a common cause of early pregnancy loss. Choice B is incorrect because an incompetent cervix typically leads to late miscarriages, not early spontaneous abortions. Choice C is incorrect as while infections can be a cause of spontaneous abortions, they are not the most common cause. Choice D is incorrect as nutritional deficiencies are not the most common cause of early spontaneous abortions.
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