HESI RN
HESI 799 RN Exit Exam Quizlet
1. During shift report, the central electrocardiogram (EKG) monitoring system alarms. Which client alarm should the nurse investigate first?
- A. Respiratory apnea of 30 seconds
- B. Oxygen saturation rate of 88%
- C. Eight premature ventricular beats every minute
- D. Disconnected monitor signal for the last 6 minutes.
Correct answer: A
Rationale: The correct answer is A: Respiratory apnea of 30 seconds. Respiratory apnea indicates a cessation of breathing, which is a life-threatening emergency requiring immediate intervention. Priority should be given to assessing and managing airway, breathing, and circulation. Option B, oxygen saturation rate of 88%, can indicate hypoxemia, but addressing the lack of breathing takes precedence. Option C, eight premature ventricular beats every minute, and option D, a disconnected monitor signal, are important but do not pose an immediate threat to the client's life compared to respiratory apnea.
2. A client with end-stage renal disease (ESRD) is scheduled for hemodialysis. Which laboratory value should the nurse report to the healthcare provider immediately?
- A. Serum potassium of 5.5 mEq/L
- B. Serum calcium of 8 mg/dL
- C. Serum creatinine of 2.0 mg/dL
- D. White blood cell count of 10,000/mm³
Correct answer: A
Rationale: A serum potassium level of 5.5 mEq/L is concerning in a client with ESRD scheduled for hemodialysis as it indicates hyperkalemia, requiring immediate intervention. Hyperkalemia can lead to serious cardiac arrhythmias, especially during hemodialysis. Serum calcium, serum creatinine, and white blood cell count, while important, do not pose immediate life-threatening risks like hyperkalemia.
3. A young adult male is admitted to the emergency department with diabetic ketoacidosis (DKA). His pH is 7.25, HCO3 is 12 mEq/L, and blood glucose is 310 mg/dl. Which action should the nurse implement?
- A. Infuse sodium chloride 0.9% (normal saline)
- B. Prepare an emergency dose of glucagon
- C. Determine the last time the client ate
- D. Check urine for ketone bodies with a dipstick
Correct answer: A
Rationale: In DKA, restoring fluid balance with sodium chloride is a priority to address the dehydration and electrolyte imbalances present in this condition. Choice B, preparing an emergency dose of glucagon, is incorrect because DKA is characterized by insulin deficiency, not glucagon deficiency. Choice C, determining the last time the client ate, is not the immediate priority in managing DKA. Choice D, checking urine for ketone bodies with a dipstick, may help confirm the diagnosis of DKA but is not the most critical intervention at this time.
4. A client with a history of chronic obstructive pulmonary disease (COPD) is admitted with pneumonia. Which assessment finding is most concerning to the nurse?
- A. Oxygen saturation of 90%
- B. Respiratory rate of 24 breaths per minute
- C. Use of accessory muscles
- D. Inspiratory crackles
Correct answer: C
Rationale: The correct answer is C: 'Use of accessory muscles.' In a client with a history of COPD, the use of accessory muscles indicates increased work of breathing and may signal respiratory failure, necessitating immediate intervention. This finding is concerning as it suggests the client is struggling to breathe adequately. Oxygen saturation of 90% (choice A) is low but may be expected in COPD patients; it requires monitoring and intervention but is not as immediately concerning as the use of accessory muscles. A respiratory rate of 24 breaths per minute (choice B) is within a normal range and, although slightly elevated, may be a typical response to pneumonia. Inspiratory crackles (choice D) can be a common finding in pneumonia and are not as indicative of impending respiratory failure as the use of accessory muscles.
5. A client with type 2 diabetes is admitted with hyperglycemic hyperosmolar syndrome (HHS). Which laboratory value requires immediate intervention?
- A. Serum glucose of 600 mg/dL
- B. Serum osmolarity of 320 mOsm/kg
- C. Serum sodium of 130 mEq/L
- D. Serum potassium of 5.0 mEq/L
Correct answer: B
Rationale: A serum osmolarity of 320 mOsm/kg is concerning in a client with HHS because it indicates severe dehydration and hyperosmolarity, which requires immediate intervention. In HHS, the elevated serum osmolarity leads to neurological symptoms and can result in serious complications if not addressed promptly. While a high serum glucose level (choice A) is typical in HHS, the osmolarity is a more direct indicator of dehydration and severity. Serum sodium (choice C) and potassium levels (choice D) are important but do not pose an immediate threat to the client's condition compared to the severe hyperosmolarity indicated by a high serum osmolarity level.
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