HESI Fundamentals Exam

Correct Answer: A

Rationale: Refrigeration can kill the ova and parasites present in the stool specimen, leading to inaccurate test results. Storing the specimen in a cold environment can disrupt the integrity of the parasites and ova, affecting the accuracy of the test. Collecting the specimen in a sterile container (Choice B) is the correct procedure to prevent external contamination. Delaying the collection of the specimen (Choice C) may affect the freshness of the sample but does not directly impact the test results. Using a non-contaminated collection container (Choice D) is essential to maintain the sample's integrity but does not relate to the risk of killing ova and parasites through refrigeration.

Correct Answer: D

Rationale: The best way to handle the situation in this scenario is to move the neighboring client to a room at the end of the hall. This solution is considerate to both clients because it addresses the issue by providing a quieter environment for the client with dementia while allowing the postoperative client to rest. Choice A is inappropriate as it does not address the root cause of the problem and may not be feasible or respectful. Choice B of closing the doors may not effectively reduce the noise disturbance. Choice C of giving the complaining client sedatives should be the last resort and not the initial solution, as it does not address the underlying issue causing the disturbance.

Correct Answer: A

Rationale: When an irregular pulse is detected, it is essential to count the apical pulse rate for a full minute to accurately determine the rhythm. This ensures a comprehensive assessment and helps in identifying any potential issues or abnormalities. Rechecking the pulse at the same site after 5 minutes (Choice B) may not provide an immediate understanding of the irregularity. Measuring the client's blood pressure (Choice C) is important but not directly related to addressing the irregular pulse. Recording the irregularity and continuing with other vital signs (Choice D) may overlook a potentially serious cardiac issue that requires immediate attention.

Correct Answer: A

Rationale: When a nurse suspects pediculosis capitis (head lice) upon noticing movement in the patient's hair, the correct action is to use gloves to inspect the hair. This protects the nurse from potential self-infestations. Applying a lindane-based shampoo immediately (Choice B) is not the first action, as diagnosis and confirmation are necessary before treatment. Shaving the patient's hair off (Choice C) is an extreme measure and is unnecessary at this stage. Ignoring the movement and continuing (Choice D) is negligent and can lead to the spread of infestation.

Correct Answer: C

Rationale: Encouraging bed rest and quiet activities is crucial for a child recovering from a splenectomy with low hemoglobin and hematocrit levels. This approach helps conserve energy, promotes healing, and allows the body to focus on rebuilding red blood cells. Limiting milk and milk products (Choice A) is not directly related to improving the child's condition. Encouraging bed rest and quiet activities (Choice B) is appropriate as it helps in conserving energy and preventing physical exertion. Promoting a diet rich in iron (Choice D) is beneficial for improving hemoglobin levels in the long term, but immediate rest and recovery take precedence in this scenario.