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. When assessing a client's blood pressure and determining an auscultatory gap, which action should the nurse implement?
- A. Compare the palpated systolic blood pressure with the auscultated pressure
- B. Assess the client for lightheadedness upon standing
- C. Determine if an automated blood pressure reading is consistent with the manual reading
- D. Observe for changes in blood pressure between lying and sitting positions
Correct answer: A
Rationale: When an auscultatory gap is present, comparing the palpated systolic blood pressure with the auscultated pressure is crucial. This helps to accurately measure blood pressure and detect any discrepancies caused by the gap. Assessing for lightheadedness upon standing (choice B) is unrelated to addressing an auscultatory gap. Checking the consistency between automated and manual blood pressure readings (choice C) is important for validation but not specifically for managing an auscultatory gap. Observing blood pressure changes between lying and sitting positions (choice D) is relevant for orthostatic hypotension assessment but not for dealing with an auscultatory gap.
3. A 5-week-old infant who developed projectile vomiting over the last two weeks is diagnosed with hypertrophic pyloric stenosis. Which intervention should the nurse plan to implement?
- A. Instruct the mother to give the child sugar water only
- B. Maintain intravenous fluid therapy per prescription
- C. Provide Pedialyte feedings via the nasogastric tube
- D. Offer the infant Pedialyte feedings every 2 hours
Correct answer: B
Rationale: Maintaining intravenous fluid therapy is crucial for managing dehydration and electrolyte imbalances caused by the vomiting in hypertrophic pyloric stenosis. Instructing the mother to give sugar water only (Choice A) is not appropriate as it does not address the dehydration and electrolyte imbalances adequately. Providing Pedialyte feedings via the nasogastric tube (Choice C) may not be sufficient to manage the severe fluid and electrolyte losses caused by the condition. Offering Pedialyte feedings every 2 hours (Choice D) may not be as effective as maintaining intravenous fluid therapy, especially in cases where rapid rehydration is necessary.
4. A client complains of paresthesia in the fingers and toes and experiences hand spasms when the blood pressure cuff is inflated. Which serum laboratory finding should the nurse expect to find when assessing the client?
- A. Elevated serum calcium
- B. Low serum magnesium
- C. Low serum calcium
- D. Elevated serum potassium
Correct answer: C
Rationale: The correct answer is C: Low serum calcium. Hand spasms and paresthesia are indicative of potential hypocalcemia, which is characterized by low serum calcium levels. Elevated serum calcium (Choice A) is not consistent with the symptoms described. Low serum magnesium (Choice B) and elevated serum potassium (Choice D) are not typically associated with hand spasms and paresthesia.
5. A 10-month-old girl is admitted with a diagnosis of possible cystic fibrosis. What question should the nurse ask the parent to assist in the diagnosis of cystic fibrosis (CF)?
- A. When you kiss her, does she taste salty?
- B. Do you notice if her urine has a musty odor?
- C. Has she been drinking cow's milk in her daily diet?
- D. How often does she have a normal bowel movement?
Correct answer: A
Rationale: The correct answer is A. Salty skin is a common sign of cystic fibrosis due to high levels of sodium in sweat. Asking about the taste of the child's skin provides valuable information related to the diagnosis of CF. Choices B, C, and D are not helpful in diagnosing cystic fibrosis. A musty odor in urine is not a typical symptom of CF. Drinking cow's milk or bowel movement frequency are not specific to CF diagnosis.
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