HESI LPN
CAT Exam Practice
1. The nurse is assessing a client with Addison's disease who is weak, dizzy, disoriented, and has dry oral mucous membranes, poor skin turgor, and sunken eyes. Vital signs are blood pressure 94/44, heart rate 123 beats/minute, respiration 22 breaths/minute. Which intervention should the nurse implement first?
- A. Assess extremity strength and resistance
- B. Report a sodium level of 132 mEq/L or mmol/L (SI units)
- C. Measure and record the cardiac QRS complex
- D. Check current finger stick glucose
Correct answer: D
Rationale: The client’s symptoms suggest possible adrenal crisis or hypoglycemia. Checking glucose is a priority to rule out hypoglycemia, which requires immediate intervention. The client is presenting with symptoms indicative of hypoglycemia, which can be life-threatening if not promptly addressed. Assessing extremity strength, reporting sodium levels, or measuring the cardiac QRS complex are not the most urgent actions in this scenario.
2. A client with a peripherally inserted central catheter (PICC) line has a fever. What client assessment is most important for the nurse to perform?
- A. Observe the PICC line site for inflammation.
- B. Encourage increasing fluid intake.
- C. Monitor blood pressure regularly.
- D. Assess skin turgor for dehydration.
Correct answer: A
Rationale: The correct answer is to observe the PICC line site for inflammation. When a client with a PICC line develops a fever, it could indicate an infection related to the catheter. Assessing the PICC line site for signs of inflammation, such as redness, warmth, swelling, or drainage, is crucial in identifying a potential infection early. Choice B is incorrect because increasing fluid intake is not directly related to assessing a PICC line for infection. Choice C is not the most appropriate assessment in this situation as monitoring blood pressure may not directly help in identifying the cause of the fever. Choice D is unrelated to the assessment of a fever in a client with a PICC line.
3. A client with endometrial carcinoma is receiving brachytherapy and has radioactive Cesium loaded in a vaginal applicator. What action should the nurse implement?
- A. Wear a dosimeter film badge when in the client’s room
- B. Spend 30 minutes at the bedside when providing direct care
- C. Change the linens every day after assisting with a bed bath
- D. Use gloves to remove the applicator if it is dislodged in the bed
Correct answer: A
Rationale: The correct action for the nurse to implement when caring for a client with a radioactive Cesium-loaded vaginal applicator during brachytherapy is to wear a dosimeter film badge when in the client’s room. Wearing a dosimeter badge is essential to monitor radiation exposure and ensure the safety of healthcare providers. Choice B is incorrect as the duration is not specified and unnecessary. Choice C is incorrect as changing linens daily does not directly relate to radiation safety. Choice D is incorrect as using gloves to remove the applicator if dislodged is important but not the primary action to monitor radiation exposure.
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 their limited muscle mass and safety. Infants do not have well-developed muscle mass, making the vastus lateralis the best option for IM injections. The deltoid muscle is typically used for older children and adults. Ventrogluteal and dorsogluteal sites are not recommended for infants due to safety concerns, including the risk of damaging the sciatic nerve. Therefore, the correct choice is the vastus lateralis for IM injections in infants.
5. Which client is at the greatest risk for developing delirium?
- A. An adult client who cannot sleep due to constant pain
- B. An older client who attempted suicide 1 month ago
- C. A young adult who takes antipsychotic medications twice a day
- D. A middle-aged woman who uses a tank for supplemental oxygen
Correct answer: B
Rationale: The correct answer is B because older adults are at higher risk for delirium, especially following a recent suicide attempt, which can be a significant stressor. Choice A is less likely to develop delirium solely due to difficulty sleeping; delirium is more complex and multifactorial. Choice C, a young adult taking antipsychotic medications, may be at risk for other conditions but not necessarily delirium. Choice D, a middle-aged woman using supplemental oxygen, is not directly linked to an increased risk of delirium compared to the older client who recently attempted suicide.
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