HESI Fundamentals Exam

Correct Answer: A

Rationale: To calculate the mL to administer, use the formula: Dose required (mg) � Stock concentration (mg/mL) = Volume to administer (mL). In this case, 10 mg � 40 mg/mL = 0.25 mL. However, when rounding to the nearest tenth, the answer should be 0.3 mL. Therefore, the nurse should administer 0.3 mL. Choice A is the correct answer. Choice B (0.25 mL) is the result obtained before rounding. Choice C (0.4 mL) and Choice D (0.5 mL) are incorrect calculations.

Correct Answer: A

Rationale: To calculate the mL to administer, use the formula: Dose required (mg) � Stock concentration (mg/mL) = Volume to administer (mL). In this case, 10 mg � 40 mg/mL = 0.25 mL. However, when rounding to the nearest tenth, the answer should be 0.3 mL. Therefore, the nurse should administer 0.3 mL. Choice A is the correct answer. Choice B (0.25 mL) is the result obtained before rounding. Choice C (0.4 mL) and Choice D (0.5 mL) are incorrect calculations.

Correct Answer: A

Rationale: Inspection is the initial step in abdominal assessment as it allows the healthcare professional to visually observe any abnormalities or signs of bloating. Palpation, auscultation, and percussion are subsequent assessment techniques that follow inspection. Palpation involves feeling for tenderness, masses, or organ enlargement; auscultation is listening for bowel sounds; and percussion is used to assess the density of underlying tissues or detect the presence of fluid or air in the abdomen. In the context of a client reporting bloating, the first step should be visual inspection to gather initial information. Palpation, auscultation, and percussion come after inspection to provide a more comprehensive assessment.

Correct Answer: B

Rationale: When caring for a client with dementia, it is crucial to understand that confusion often arises after relocating to new surroundings. This change can disrupt familiar routines and trigger increased disorientation and confusion. Choice A is correct because confusion in the elderly is not a normal part of aging. Choice C is incorrect because confusion in dementia is primarily due to changes in the brain associated with the disease, not just irreversible brain pathology. Choice D is incorrect because while adequate sleep is important for overall health, it alone cannot prevent or cure confusion associated with dementia.

Correct Answer: C

Rationale: The Z-track method is used to minimize tissue irritation by sealing the medication in the muscle. This technique helps prevent leakage of the medication into subcutaneous tissue, reducing the risk of irritation and staining at the injection site. Option A about decreasing the risk of injecting medication into a blood vessel is not correct as the primary purpose of the Z-track method is to prevent tissue irritation. Option B stating it delays medication absorption is incorrect as the Z-track method does not affect the rate of medication absorption. Option D mentioning it accelerates medication excretion is incorrect as the Z-track method does not impact medication excretion but rather focuses on minimizing tissue irritation.