HESI RN
HESI Medical Surgical Exam
1. Which of the following assessments is the most important for a patient receiving IV potassium?
- A. Respiratory rate
- B. Heart rate
- C. Blood pressure
- D. Oxygen saturation
Correct answer: C
Rationale: The most important assessment for a patient receiving IV potassium is monitoring blood pressure. IV potassium can cause significant changes in cardiac function, leading to adverse effects such as arrhythmias and cardiac arrest. While respiratory rate, heart rate, and oxygen saturation are important parameters to monitor in clinical practice, blood pressure takes precedence in patients receiving IV potassium due to its direct impact on cardiovascular function. Changes in blood pressure can be an early indicator of potassium-induced cardiac complications, making it crucial to monitor closely during administration.
2. The client with chronic renal failure is being taught about the importance of fluid restrictions. Which of the following statements by the client indicates that the teaching has been effective?
- A. I can drink as much fluid as I want, as long as I take my medication.
- B. I will need to limit my fluid intake to prevent fluid overload.
- C. I can drink as much water as I want, as long as I limit other fluids.
- D. I will need to drink only when I am thirsty.
Correct answer: B
Rationale: The correct answer is B: 'I will need to limit my fluid intake to prevent fluid overload.' In chronic renal failure, fluid restrictions are crucial to prevent fluid overload and further damage to the kidneys. Option A is incorrect as unrestricted fluid intake can worsen the condition. Option C is also incorrect as total fluid intake needs to be restricted, not just other fluids. Option D is not ideal because thirst may not accurately reflect the body's fluid needs in chronic renal failure.
3. A nurse teaches clients about the difference between urge incontinence and stress incontinence. Which statements should the nurse include in this education? (Select all that apply.)
- A. Urge incontinence involves a post-void residual volume less than 50 mL.
- B. Stress incontinence occurs due to weak pelvic floor muscles.
- C. Stress incontinence usually occurs in people with dementia.
- D. Urge incontinence can be managed by increasing fluid intake.
Correct answer: B
Rationale: The correct statement to include in the education about urge incontinence and stress incontinence is choice B. Stress incontinence occurs due to weak pelvic floor muscles or urethral sphincter, leading to the inability to tighten the urethra sufficiently to overcome increased detrusor pressure. This condition is common after childbirth when pelvic muscles are stretched and weakened. Urge incontinence, on the other hand, is characterized by the inability to suppress the contraction signal from the detrusor muscle. It is often associated with abnormal detrusor contractions, which can be due to neurological abnormalities rather than post-void residual volume. Choice A is incorrect because urge incontinence is not defined by post-void residual volume. Choice C is incorrect as stress incontinence is not usually linked to dementia. Choice D is incorrect because increasing fluid intake is not a management strategy for urge incontinence.
4. An elderly client is admitted with a diagnosis of bacterial pneumonia. The nurse's assessment of the client will most likely reveal which sign/symptom?
- A. Leukocytosis and febrile.
- B. Polycythemia and crackles.
- C. Pharyngitis and sputum production.
- D. Confusion and tachycardia.
Correct answer: D
Rationale: The onset of pneumonia in the elderly may be signaled by general deterioration, confusion, increased heart rate or increased respiratory rate due to the decreased oxygen- carbon dioxide exchange at the alveoli, known as the V-Q mismatch.
5. The nurse is administering intravenous fluids to a dehydrated patient. On the second day of care, the patient's weight has increased by 2.25 pounds. The nurse would expect that the patient's fluid intake has
- A. equaled urine output.
- B. exceeded urine output by 1 L.
- C. exceeded urine output by 2.5 L.
- D. exceeded urine output by 3 L.
Correct answer: B
Rationale: A weight gain of 1 kg, or approximately 2.2 to 2.5 lb, is generally equivalent to 1 liter (L) of fluid retained by the body. In this case, the patient's weight gain of 2.25 pounds suggests an excess fluid retention of approximately 1 liter, indicating that the patient's fluid intake has exceeded urine output by 1 liter. Choices C and D are incorrect as they overestimate the fluid excess based on the patient's weight gain. Choice A is incorrect as it implies an exact balance between fluid intake and urine output, which is not reflected in the given weight increase.
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