HESI RN
RN HESI Exit Exam
1. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which laboratory value is most concerning?
- A. Serum sodium of 135 mEq/L
- B. Serum potassium of 4.0 mEq/L
- C. Serum bicarbonate of 18 mEq/L
- D. Serum glucose of 300 mg/dL
Correct answer: C
Rationale: A serum bicarbonate level of 18 mEq/L is most concerning in a client with COPD as it indicates metabolic acidosis, requiring immediate intervention. In COPD, patients often retain carbon dioxide, leading to respiratory acidosis. A low serum bicarbonate level suggests that the body is compensating for this respiratory acidosis by increasing bicarbonate levels to maintain balance. Therefore, a low serum bicarbonate level in this scenario is alarming. Choices A, B, and D are within normal ranges and not directly related to the acid-base imbalance seen in COPD.
2. A client is admitted with a diagnosis of diabetic ketoacidosis (DKA). Which clinical finding is most concerning to the nurse?
- A. Kussmaul respirations
- B. Blood glucose level of 300 mg/dl
- C. Serum potassium of 3.2 mEq/L
- D. Positive urine ketones
Correct answer: C
Rationale: The correct answer is C: Serum potassium of 3.2 mEq/L. A low serum potassium level in a client with DKA is concerning due to the risk of cardiac arrhythmias. Kussmaul respirations (choice A) are a compensatory mechanism for metabolic acidosis in DKA. A blood glucose level of 300 mg/dl (choice B) is elevated but expected in DKA. Positive urine ketones (choice D) are a classic finding in DKA and not as concerning as low serum potassium.
3. The nurse determines that a client's pupils constrict as they change focus from a far object. What documentation should the nurse enter about this finding?
- A. Pupils reactive to accommodation.
- B. Nystagmus present with pupillary focus.
- C. Peripheral vision intact.
- D. Consensual pupillary constriction present.
Correct answer: A
Rationale: The correct answer is A: 'Pupils reactive to accommodation.' When pupils constrict as the client changes focus from a far object to a near one, it indicates a normal response known as accommodation. This physiological process allows the eyes to adjust their focus, and it is a healthy finding. Choice B is incorrect because nystagmus is an involuntary eye movement, not related to the change in focus. Choice C is irrelevant to the scenario and does not describe the observed finding. Choice D refers to pupillary constriction in response to light, not accommodation to changes in focus.
4. A client with liver cirrhosis and ascites is admitted with 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 ammonia level of 80 mcg/dl is elevated and concerning in a client with liver cirrhosis, as it may indicate hepatic encephalopathy. Elevated ammonia levels can lead to neurological symptoms such as confusion, altered mental status, and even coma. Serum albumin, bilirubin, and prothrombin time are important in liver cirrhosis but are not the most concerning for acute neurological deterioration associated with hepatic encephalopathy.
5. A female client reports that she drank a liter of a solution to cleanse her intestines but vomited immediately. How many ml of fluid intake should the nurse document?
- A. 240 ml
- B. 500 ml
- C. 760 ml
- D. 1000 ml
Correct answer: C
Rationale: The correct answer is 760 ml. After vomiting 240 ml (1 cup), the nurse should document the remaining 760 ml as the fluid intake. Choice A (240 ml) is the amount vomited, not the total intake. Choice B (500 ml) and Choice D (1000 ml) are the total intake, not considering the vomiting.
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