HESI Practice Test for Fundamentals

Correct Answer: B

Rationale: Droplet precautions should be initiated for clients with infections that spread via droplet nuclei larger than 5 microns in diameter, such as influenza, rubella, meningococcal pneumonia, and streptococcal pharyngitis. In the case of influenza, the virus is primarily spread through respiratory droplets produced when an infected person coughs, sneezes, or talks. Airborne precautions are used for pathogens that remain infectious over long distances, typically smaller than 5 microns, like tuberculosis. Contact precautions are for diseases transmitted by direct or indirect contact, and protective environment precautions are for immunocompromised individuals to protect them from environmental pathogens.

Correct Answer: B

Rationale: The correct answer is B, which is low-molecular-weight heparin doses. After hip replacement surgery, patients are at risk of developing deep vein thrombosis (DVT) due to immobility. Heparin and low-molecular-weight heparin are commonly used for prophylaxis against DVT. Monitoring for hemorrhage is crucial when administering anticoagulants. Choices A, C, and D are not directly related to monitoring for hemorrhage in this scenario. Thick, tenacious pulmonary secretions (Choice A) may indicate respiratory issues, SCDs (Choice C) help prevent DVT but do not directly relate to hemorrhage monitoring, and elastic stockings (TED hose) (Choice D) are used for DVT prophylaxis but do not alert to hemorrhage.

Correct Answer: D

Rationale: The correct answer is D. Turning a patient's head with a neck injury to the side when giving oral care can lead to harm or further injury. The neck should be kept in a neutral position to prevent exacerbation of the injury. Choices A, B, and C are not actions that require immediate nurse intervention. Not offering a backrub, not washing a patient's hair, or turning off the television are not critical issues that pose harm to the patient's well-being or safety.

Correct Answer: B

Rationale: To administer 200 mg of metoprolol using 100 mg tablets, the healthcare professional should give 2 tablets. Each tablet contains 100 mg of metoprolol, so 2 tablets will provide the required 200 mg dose. Choice A is incorrect because 1 tablet would only provide 100 mg, which is insufficient. Choice C is incorrect as fractions of tablets are usually not used in practice to ensure accurate dosing. Choice D is incorrect as it would result in an overdose, providing 400 mg instead of the prescribed 200 mg.

Correct Answer: A

Rationale: A bounding pulse is indicative of fluid volume excess. In this case, the client's weight gain and edematous ankles already suggest fluid volume overload. A bounding pulse occurs due to increased blood volume and pressure. Choices B, C, and D are not indicative of fluid volume excess. Decreased blood pressure, dry mucous membranes, and weak pulse are more commonly associated with conditions such as dehydration or hypovolemia, where there is a decrease in fluid volume rather than an excess.