HESI Fundamentals Exam

Correct Answer: C

Rationale: The correct answer is C. Ensuring the oxygen equipment's wires and cables are in good working order is crucial to prevent sparks in an oxygen-rich environment, which could lead to a fire. Choices A, B, and D are incorrect because smoking near an oxygen tank, using a cotton blanket near oxygen (as cotton is less likely to generate static electricity than wool), and laying the oxygen tank down on the floor pose significant safety risks and are not appropriate practices for managing oxygen therapy at home.

Correct Answer: D

Rationale: The correct answer is D. During the anger stage of grief, it is essential for the nurse to reassure the client that anger is a normal reaction to a cancer diagnosis. This validation of the client's emotions can help in providing emotional support. Choice A is incorrect because discussing risk factors for colorectal cancer does not address the client's current emotional state. Choice B is incorrect because focusing teaching on the client's future management does not directly address the client's need for emotional support in the present. Choice C is incorrect because providing written information about loss and grief phases is not as immediately comforting as directly reassuring the client about his feelings of anger.

Correct Answer: B

Rationale: Measuring the pH of the gastric aspirate is the most reliable method to confirm proper placement of an NG tube. Gastric fluid has an acidic pH, typically ranging from 1 to 5. Assessing the client for a gag reflex (choice A) is important for airway protection but does not confirm tube placement. Placing the NG tube in water to observe for bubbling (choice C) is incorrect and not a reliable method for verifying placement. Auscultating 2.5 cm above the umbilicus while injecting sterile water (choice D) is an outdated method and is not recommended for verifying NG tube placement.

Correct Answer: B

Rationale: In a mass casualty scenario, the triage nurse would prioritize the toddler with severe deep abrasions covering over 98% of the body for treatment last. This child is categorized as 'expectant' due to the extensive injuries, which are unlikely to be survivable even with immediate treatment. The other choices describe injuries that are serious but have a higher likelihood of survival with appropriate and timely intervention. The infant with an intermittent bulging anterior fontanel may have increased intracranial pressure requiring urgent evaluation, the preschooler with leg fractures can be stabilized and treated effectively, and the school-age child with singed hair likely has superficial burns which can be managed promptly.

Correct Answer: D

Rationale: The correct answer is to check the IV tubing for obstruction. The first step in the nursing process is assessment. By checking the IV tubing for obstruction, the nurse can assess and potentially correct any issues affecting the flow rate. This action may help to ensure that the prescribed infusion rate is maintained. Repositioning the client is not the priority at this stage as the issue seems related to the IV tubing. Documenting the intake or requesting a new prescription are not immediate actions needed to address the current situation with the IV fluid flow.