HESI RN
HESI 799 RN Exit Exam
1. While auscultating a client's heart sounds, which description should the nurse use to document a swishing sound related to blood turbulence or valvular defect?
- A. S1 S2
- B. S1 S2 S3
- C. Murmur
- D. Pericardial friction rub
Correct answer: C
Rationale: The correct answer is 'C: Murmur.' A murmur is auscultated as a swishing sound associated with blood turbulence caused by the heart or a valvular defect. Choices 'A: S1 S2' and 'B: S1 S2 S3' refer to normal heart sounds, specifically the closure of heart valves. 'D: Pericardial friction rub' is a dry, rubbing or grating sound caused by inflammation of the pericardial sac and is not associated with blood flow or valvular issues.
2. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which laboratory value is most concerning?
- A. Serum glucose of 300 mg/dl
- B. Serum bicarbonate of 18 mEq/L
- C. Serum potassium of 5.5 mEq/L
- D. Serum sodium of 135 mEq/L
Correct answer: C
Rationale: A serum potassium level of 5.5 mEq/L is concerning in a client with DKA as it may indicate worsening hyperkalemia, requiring immediate intervention. Elevated serum potassium levels can lead to life-threatening cardiac arrhythmias. While elevated glucose and low bicarbonate are characteristic of DKA, hyperkalemia poses a higher immediate risk. Serum sodium within the normal range is not typically a primary concern in DKA.
3. In a client with liver cirrhosis admitted with ascites and jaundice, which laboratory value is most concerning to the nurse?
- A. Serum albumin of 3.0 g/dl
- B. Bilirubin of 3.0 mg/dl
- C. Ammonia level of 80 mcg/dl
- D. Prothrombin time of 18 seconds
Correct answer: C
Rationale: An elevated ammonia level of 80 mcg/dl is most concerning in a client with liver cirrhosis because it may indicate hepatic encephalopathy, a serious complication. Serum albumin, though low, is expected in cirrhosis and contributes to ascites. Bilirubin elevation is common in liver disease but may not be the most concerning in this case. Prothrombin time is typically prolonged in liver disease but may not be as acute as an elevated ammonia level suggesting hepatic encephalopathy.
4. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which assessment finding requires immediate intervention?
- A. Use of accessory muscles
- B. Oxygen saturation of 90%
- C. Respiratory rate of 24 breaths per minute
- D. Blood pressure of 110/70 mmHg
Correct answer: A
Rationale: The correct answer is A: Use of accessory muscles. This finding indicates increased work of breathing in a client with COPD and may signal respiratory failure, requiring immediate intervention. In COPD, the use of accessory muscles suggests that the client is in distress and struggling to breathe effectively. Oxygen saturation of 90% is within an acceptable range for a client with COPD receiving supplemental oxygen and does not require immediate intervention. A respiratory rate of 24 breaths per minute is slightly elevated but not a critical finding. A blood pressure of 110/70 mmHg is within the normal range for an adult and does not indicate a need for immediate intervention in this scenario.
5. The mother of a one-month-old boy born at home brings the infant to his first well-baby visit. The infant was born two weeks after his due date and is described as a 'good, quiet baby' who almost never cries. To assess for hypothyroidism, what question is most important for the nurse to ask the mother?
- A. Has your son had any immunizations yet?
- B. Is your son sleepy and difficult to feed?
- C. Are you breastfeeding or bottle-feeding your son?
- D. Were any relatives born with birth defects?
Correct answer: B
Rationale: The correct answer is B. Excessive sleepiness and difficulty feeding can be signs of hypothyroidism in infants. Asking about the infant's sleepiness and feeding pattern is crucial in assessing for hypothyroidism. Choice A is incorrect because immunizations are not directly related to hypothyroidism. Choice C is about feeding method and not specific to hypothyroidism. Choice D is unrelated as it asks about relatives with birth defects, which does not directly assess the infant's condition.
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