HESI LPN
CAT Exam Practice Test
1. Which client should the nurse assess frequently because of the risk for overflow incontinence?
- A. A client who is bedfast, with increased serum BUN and creatinine levels
- B. A client with hematuria and decreasing hemoglobin and hematocrit levels
- C. A client who has a history of frequent urinary tract infections
- D. A client who is confused and frequently forgets to go to the bathroom
Correct answer: A
Rationale: The correct answer is A. Bedfast clients with increased serum BUN and creatinine levels are at high risk for overflow incontinence. This occurs due to decreased bladder function and reduced ability to sense bladder fullness, leading to the bladder overfilling and leaking urine. Choice B describes symptoms related to possible urinary tract infections or renal issues, but these do not directly indicate overflow incontinence. Choice C, a history of frequent urinary tract infections, may suggest other urinary issues but not specifically overflow incontinence. Choice D, a confused client who forgets to go to the bathroom, is more indicative of functional incontinence rather than overflow incontinence.
2. A client with intestinal obstructions has a nasogastric tube to low intermittent suction and is receiving an IV of lactated Ringer’s at 100 ml/H. Which finding is most important for the nurse to report to the healthcare provider?
- A. Gastric output of 900 mL in the last 24 hours
- B. Serum potassium level of 3.1 mEq/L or mmol/L (SI)
- C. Increased blood urea nitrogen (BUN)
- D. 24-hour intake at the current infusion rate
Correct answer: B
Rationale: The most crucial finding to report to the healthcare provider in this scenario is a serum potassium level of 3.1 mEq/L. Hypokalemia can lead to serious complications, including cardiac issues. Gastric output, increased BUN, and monitoring the 24-hour intake are essential but do not pose an immediate risk as hypokalemia does in this situation.
3. A client admitted to the intensive care unit with syndrome of inappropriate antidiuretic hormone (SIADH) has developed osmotic demyelination. Which intervention should the nurse implement first?
- A. Patch one eye.
- B. Reorient often.
- C. Range of motion.
- D. Evaluate swallow
Correct answer: B
Rationale: Frequent reorientation is crucial for clients with neurological impairments from osmotic demyelination to prevent confusion and assist with orientation. It helps maintain a proper sense of time, place, and person, reducing disorientation. Patching one eye (Choice A) is not a priority intervention for osmotic demyelination and does not address the immediate need for reorientation. Range of motion exercises (Choice C) may be important for overall care, but reorientation takes precedence due to its impact on neurological functioning. Evaluating swallow (Choice D) is not the primary intervention needed for osmotic demyelination; it is essential but not the first priority.
4. 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.
5. The nurse is assessing a client with left-sided heart failure who reports nocturia and dyspnea. The nurse identifies pulsus alternans and crackles in all lung fields. Which action is best to include in the client’s plan of care?
- A. Begin client education about positive inotropic medications.
- B. Place the client in Trendelenburg position.
- C. Prepare the client for an emergency cardiac catheterization.
- D. Monitor serum Troponin, CK, and CK-MB levels.
Correct answer: A
Rationale: In the scenario described, the client is exhibiting signs of left-sided heart failure, such as dyspnea, nocturia, pulsus alternans, and crackles in all lung fields. Positive inotropic medications are commonly used in the treatment of heart failure to improve cardiac contractility and output. Therefore, beginning client education about positive inotropic medications is the best action to include in the client's plan of care. Choice B is incorrect because placing the client in Trendelenburg position is not indicated in the management of left-sided heart failure. Choice C is incorrect as emergency cardiac catheterization is not typically the initial intervention for left-sided heart failure. Choice D is incorrect as monitoring serum Troponin, CK, and CK-MB levels is more pertinent to assessing for myocardial infarction rather than managing heart failure.
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