HESI RN CAT Exit Exam 1

Correct Answer: C

Rationale: The correct answer is C. Clients in renal failure are at high risk for hypomagnesemia due to their impaired kidney function. Renal failure can lead to decreased excretion of magnesium, resulting in its buildup in the body and potential hypomagnesemia. This client requires careful nursing assessment for signs and symptoms of hypomagnesemia to prevent complications. Choices A, B, and D are not as directly associated with renal failure and its impact on magnesium levels. Intractable vomiting, hyperparathyroidism, and excessive consumption of simple carbohydrates may have other health implications but are not as strongly linked to hypomagnesemia as renal failure.

Correct Answer: B

Rationale: The correct action for the nurse to take when observing continuous bubbling in the water seal chamber of the chest tube drainage system is to notify the healthcare provider. Continuous bubbling indicates a possible air leak, and the healthcare provider needs to be informed to assess the situation and take appropriate actions. Checking for kinks in the tubing (Choice A) may be done initially but is not the priority when continuous bubbling is present. Replacing the chest tube drainage system (Choice C) and reinforcing the chest tube dressing (Choice D) are not immediate actions needed in response to continuous bubbling in the water seal chamber.

Correct Answer: A

Rationale: The correct answer is A because iron supplements are best absorbed on an empty stomach, which maximizes their effectiveness. Giving iron tablets with milk or calcium-rich foods, as mentioned in choice B, should be avoided as they can decrease iron absorption. Choice C is incorrect because iron preparations should not be taken with antibiotics due to potential interactions. Choice D is also incorrect as iron tablets do not cause an increased risk of sunburn, so sunscreen is not necessary specifically due to iron supplementation.

Correct Answer: B

Rationale: The client should be instructed to call when contractions are 5 minutes apart for an hour to ensure she is in active labor before going to the hospital.

Correct Answer: C

Rationale: The correct answer is C because a significant increase in the circumference of the right calf compared to the left calf is a classic sign of deep vein thrombosis (DVT). Option A is incorrect as dorsiflexing the right foot and left on command does not specifically indicate DVT. Option B describes an ecchymosis area which is more indicative of a bruise rather than DVT. Option D suggests bilateral lower extremity edema, which is not specific to DVT and can be seen in various conditions such as heart failure or renal issues.