HESI LPN
HESI CAT Exam
1. After a motor vehicle collision, a client is admitted to the medical unit with acute adrenal insufficiency (Addisonian crisis). Which prescription should the nurse implement?
- A. Determine serum glucose levels
- B. Withhold potassium additives to IV fluids
- C. Give IV corticosteroid replacement
- D. Prepare to initiate IV vasopressors
Correct answer: C
Rationale: In a client with acute adrenal insufficiency (Addisonian crisis) following a motor vehicle collision, the priority intervention is to administer IV corticosteroid replacement. This is crucial to manage the crisis by replacing the deficient cortisol. Determining serum glucose levels (Choice A) may be important but is not the immediate priority in this situation. Withholding potassium additives to IV fluids (Choice B) is not indicated and may exacerbate electrolyte imbalances. Initiating IV vasopressors (Choice D) is not the primary treatment for acute adrenal insufficiency and should be reserved for managing hypotension that is unresponsive to corticosteroid therapy.
2. A client with renal disease seems anxious and presents with the onset of shortness of breath, lethargy, edema, and weight gain. Which action should the nurse implement first?
- A. Determine serum potassium level
- B. Calculate the client’s daily fluid intake
- C. Assess client for signs of vertigo
- D. Review the client’s pulse oximetry reading
Correct answer: A
Rationale: The correct answer is to determine the client's serum potassium level. In a client with renal disease experiencing symptoms like shortness of breath, lethargy, edema, and weight gain, assessing serum potassium levels is crucial. Electrolyte imbalances, including potassium, can lead to serious complications such as cardiac arrhythmias and muscle weakness. Calculating daily fluid intake may be important but addressing acute symptoms related to electrolyte imbalances takes precedence. Assessing for signs of vertigo and reviewing pulse oximetry reading are not the priority in this scenario compared to assessing and managing potential electrolyte imbalances.
3. When washing soiled hands, what should the nurse do after wetting the hands and applying soap?
- A. Rub hands palm to palm
- B. Interlace the fingers
- C. Dry hands with a paper towel
- D. Turn off the water faucet
Correct answer: A
Rationale: After wetting the hands and applying soap, the nurse should rub hands palm to palm. Rubbing hands palm to palm helps create friction and effectively clean the hands by spreading the soap and reaching all areas. Interlacing the fingers, drying hands with a paper towel, and turning off the water faucet should come after rubbing hands palm to palm in the handwashing process. Interlacing the fingers can be done to ensure the backs of the hands are cleaned, drying hands with a paper towel is the final step to ensure hands are dry, and turning off the water faucet helps save water.
4. The healthcare provider is evaluating a client for potential dehydration. Which assessment finding is most indicative of fluid volume deficit?
- A. Moist mucous membranes
- B. Increased urine output
- C. Decreased skin turgor
- D. Elevated blood pressure
Correct answer: C
Rationale: Corrected Rationale: Decreased skin turgor is a classic sign of dehydration. When someone is dehydrated, the skin loses its elasticity and becomes less turgid. This change is easily assessed by gently pinching and pulling up the skin on the back of the hand or forearm. If the skin remains elevated or tents rather than quickly returning to its normal position, it indicates dehydration. Moist mucous membranes (Choice A) are actually a sign of adequate hydration. Increased urine output (Choice B) can be a sign of dehydration, but decreased skin turgor is a more specific indicator. Elevated blood pressure (Choice D) is not typically associated with fluid volume deficit and may indicate other health issues.
5. When should the nurse conduct an Allen’s test?
- A. When obtaining pulmonary artery pressures
- B. To assess for the presence of a deep vein thrombus in the leg
- C. Just before arterial blood gases are drawn peripherally
- D. Prior to attempting a cardiac output calculation
Correct answer: C
Rationale: The correct time to conduct an Allen’s test is just before arterial blood gases are drawn peripherally. This test is performed to assess the adequacy of collateral circulation in the hand before obtaining arterial blood gases. Choice A is incorrect because an Allen’s test is not specifically done when obtaining pulmonary artery pressures. Choice B is incorrect because an Allen’s test is not used to assess deep vein thrombosis. Choice D is incorrect because an Allen’s test is not done specifically before attempting a cardiac output calculation.
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