RN HESI Exit Exam

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.

Correct Answer: D

Rationale: The correct answer is to notify the healthcare provider. Purulent drainage at the incision site is concerning as it may indicate an infection. The healthcare provider needs to be informed promptly to initiate appropriate treatment. Applying a sterile dressing (Choice A) may not address the underlying issue of infection. Reinforcing the dressing and documenting findings (Choice B) is important but should be preceded by notifying the healthcare provider. Removing the dressing and assessing the incision site (Choice C) may disturb the area and should be done under the guidance of the healthcare provider.

Correct Answer: A

Rationale: Administering oxygen therapy is the priority intervention for a client with chronic heart failure presenting with shortness of breath and crackles in the lungs. Oxygen therapy helps improve oxygenation, which is crucial in managing respiratory distress. Loop diuretics (Choice B) may be indicated to manage fluid overload in heart failure but are not the immediate priority in this case. Administering morphine (Choice C) is not the first-line intervention for shortness of breath in heart failure and should be considered after addressing oxygenation and underlying causes. Obtaining an arterial blood gas sample (Choice D) can provide valuable information but is not the initial action needed to address the client's acute respiratory distress.

Correct Answer: A

Rationale: The correct intervention is to dilute the formula by adding equal amounts of water and feeding to a feeding bag and infusing it at 50 ml/hour. This can help alleviate the diarrhea that has developed. Diarrhea can occur as a complication of enteral tube feeding and can be due to a variety of causes, including hyperosmolar formula. Choice B is incorrect as continuing the full-strength feeding, even at a lower rate, may not address the issue of diarrhea. Choice C is incorrect because it is important to follow the new prescription to manage the diarrhea effectively. Choice D is incorrect as withholding feeding without taking appropriate action may delay necessary intervention.

Correct Answer: C

Rationale: Subcutaneous emphysema requires immediate intervention in a client with a chest tube following a pneumothorax as it can indicate a pneumothorax recurrence or air leak. Oxygen saturation of 95% is within the normal range and does not require immediate intervention. Crepitus around the insertion site can be expected post-procedure and may not necessitate immediate action. Drainage of 50 ml per hour is a normal finding and does not raise immediate concerns.