HESI Fundamentals Test Bank

Correct Answer: A

Rationale: An elevated white blood cell count (WBC 15,000/mm�) is a common indicator of infection as the body increases WBC production to fight off pathogens. In conditions like infections, inflammation, or stress, the WBC count can rise. The other options, hemoglobin, platelet count, and sodium levels, are not typically specific indicators of infection. Hemoglobin measures the oxygen-carrying capacity of red blood cells, platelet count assesses clotting ability, and sodium levels indicate electrolyte balance.

Correct Answer: C

Rationale: Assessing the client's ability to participate in self-care or evaluating the reliability of a caregiver is crucial in ensuring adherence to the treatment plan. This action helps determine if the client can manage the intravenous antibiotics at home independently or if assistance is needed. Investigating insurance coverage, ensuring hand washing facilities, and selecting the venous access device are important aspects of care but assessing the client's ability for self-care and caregiver reliability takes precedence to promote treatment success and safety.

Correct Answer: B

Rationale: When a patient uses an in-the-canal hearing aid, cerumen buildup is a critical issue that needs to be regularly assessed. Cerumen can easily block the sound passage and affect the functionality of the hearing aid. Assessing and managing cerumen buildup is a priority to ensure the proper functioning of the hearing aid. Eyeglass usage, type of physical exercise, and excessive moisture problems are not directly related to the specific issue of cerumen buildup in in-the-canal hearing aids, making them lower priority assessments in this context.

Correct Answer: C

Rationale: Ensuring the water seal chamber is filled to the appropriate level is crucial to maintain the effectiveness of the chest tube drainage system. This step helps prevent air from entering the pleural space, ensuring proper lung re-expansion. 'Milking' the chest tube is not recommended as it can cause damage to the chest tube and surrounding tissues. Clamping the chest tube is not advisable as it can lead to tension pneumothorax. Securing the chest tube to the bed is important for stability but does not directly impact the functioning of the chest tube.

Correct Answer: A

Rationale: The correct answer is to administer nitroglycerin sublingually. Administering nitroglycerin sublingually is the priority action for a client with chest pain and a history of coronary artery disease. Nitroglycerin helps dilate the coronary arteries, improving blood flow to the heart muscle and providing rapid relief of chest pain. Obtaining a 12-lead ECG, measuring vital signs, and administering oxygen are important actions but should follow the administration of nitroglycerin in the management of chest pain in a client with coronary artery disease.