HESI RN
HESI RN CAT Exit Exam 1
1. Which assessment finding is most indicative of deep vein thrombosis (DVT) in a client's right leg?
- A. Dorsiflexes the right foot and left on command
- B. A 3 by 5 cm ecchymosis area covering the right calf
- C. Right calf is 3 cm larger in circumference than the left
- D. Bilateral lower extremity has 3+ pitting edema
Correct answer: C
Rationale: The correct answer is C because a significant increase in the circumference of the right calf compared to the left calf is a classic sign of deep vein thrombosis (DVT). Option A is incorrect as dorsiflexing the right foot and left on command does not specifically indicate DVT. Option B describes an ecchymosis area which is more indicative of a bruise rather than DVT. Option D suggests bilateral lower extremity edema, which is not specific to DVT and can be seen in various conditions such as heart failure or renal issues.
2. A client is leaving the hospital against medical advice (AMA) and voluntarily signs the AMA form. Which nursing action is essential prior to the client leaving?
- A. Remove the client's peripheral IV access
- B. Administer requested pain relief medication
- C. Obtain the client's neurological vital signs
- D. Provide the client with the hospital's phone number
Correct answer: A
Rationale: Removing the client's peripheral IV access is essential before the client leaves against medical advice to prevent complications such as infection, thrombosis, or bleeding. Administering pain relief medication (choice B) can be important but not essential at this point. Obtaining neurological vital signs (choice C) is not specifically required before the client leaves. Providing the client with the hospital's phone number (choice D) may be helpful but is not as essential as ensuring the safe removal of IV access.
3. A client in acute renal failure has a serum potassium of 7.5 mEq/L. Based on this finding, the nurse should anticipate implementing which action?
- A. Administer an IV of normal saline rapidly and NPH insulin subcutaneously.
- B. Administer a retention enema of Kayexalate.
- C. Add 40 mEq of KCL (potassium chloride) to the present IV solution.
- D. Administer a lidocaine bolus IV push.
Correct answer: B
Rationale: In acute renal failure with a high serum potassium level, the priority intervention is to lower potassium levels to prevent complications like cardiac arrhythmias. Administering a retention enema of Kayexalate is the correct action as it helps lower high potassium levels by exchanging sodium for potassium in the intestines. Options A, C, and D are incorrect. Administering normal saline rapidly and NPH insulin or adding more potassium to the IV solution can further increase potassium levels, worsening the condition. Lidocaine is not indicated for treating hyperkalemia.
4. The nurse is preparing to administer an IM injection to a 6-month-old child. Which injection site is best for the nurse to use?
- A. Vastus lateralis
- B. Deltoid
- C. Ventrogluteal
- D. Dorsogluteal
Correct answer: A
Rationale: The vastus lateralis is the preferred site for IM injections in infants due to muscle development. In infants under 1 year old, the vastus lateralis muscle in the thigh is often used for IM injections due to its size and development. The deltoid muscle is typically used for adults, and the ventrogluteal and dorsogluteal sites are more commonly used for older children and adults. Therefore, the best choice for administering an IM injection to a 6-month-old child is the vastus lateralis.
5. 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.
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