HESI RN
Biology Test
1. What is the smallest and most basic unit of matter?
- A. Micromolecule
- B. Atom
- C. Organelle
- D. Molecule
Correct answer: B
Rationale: The correct answer is B, Atom. An atom is the smallest unit of matter that retains the properties of an element. Choice A, Micromolecule, is incorrect because molecules are composed of atoms bonded together, making them larger than individual atoms. Choice C, Organelle, is incorrect as organelles are structures within cells, not the basic unit of matter. Choice D, Molecule, is incorrect as molecules are made up of atoms bonded together, so they are not the smallest unit of matter.
2. When should a new nurse graduate consider applying for a position as a nurse manager?
- A. When she is comfortable in her current position
- B. When she begins mentoring other new nurses
- C. As soon as a position opens
- D. When she has developed leadership and clinical expertise
Correct answer: D
Rationale: A new nurse graduate should consider applying for a nurse manager position when they have developed both leadership and clinical expertise. This ensures that they are well-prepared for the responsibilities of the role. Choice A is incorrect because being comfortable in the current position does not necessarily equate to having the required skills for a nurse manager role. Choice B is incorrect as mentoring other new nurses, while valuable, may not directly align with the skills needed for a managerial position. Choice C is incorrect as applying for a nurse manager position solely because a position is available does not guarantee readiness for the role.
3. Which information is a priority for the client to reinforce after intravenous pyelography?
- A. Eat a light diet for the rest of the day
- B. Rest for the next 24 hours as the preparation and test are tiring.
- C. During waking hours, drink at least 1 8-ounce glass of fluid every hour for the next 2 days
- D. Measure urine output for the next day and immediately notify the healthcare provider if it decreases.
Correct answer: D
Rationale: After intravenous pyelography, monitoring urine output is crucial to assess kidney function and detect any early signs of complications. Decreased urine output could indicate a problem with kidney function or potential complications from the procedure. While rest and hydration are important, the priority lies in monitoring urine output for any abnormalities. Eating a light diet may be recommended, but it is not the priority post-procedure instruction.
4. An overweight client taking warfarin (Coumadin) has dry skin due to decreased arterial blood flow. What should the nurse instruct the client to do? Select all that apply.
- A. Apply lanolin or petroleum jelly to intact skin.
- B. Follow a reduced-calorie, reduced-fat diet.
- C. Inspect the involved areas daily for new ulcerations.
- D. Instruct the client to limit activities of daily living (ADLs).
Correct answer: A
Rationale: To address dry skin and prevent chronic ulcers and infections in an overweight client on warfarin with decreased arterial blood flow, the nurse should instruct the client to apply lanolin or petroleum jelly to intact skin. This helps maintain skin integrity and moisture. Following a reduced-calorie, reduced-fat diet (Choice B) may be beneficial for weight management but is not directly related to skin care. Inspecting involved areas daily for new ulcerations (Choice C) is important for skin assessment and early intervention but does not specifically address dry skin. Instructing the client to limit activities of daily living (ADLs) (Choice D) is not necessary for addressing dry skin; in fact, promoting mobility and circulation through appropriate activities is crucial.
5. A client with diabetes mellitus is experiencing hyperglycemia. What laboratory value should the nurse monitor to evaluate long-term glucose control?
- A. Blood glucose level
- B. Glycosylated hemoglobin (A1C)
- C. Urine output
- D. Serum ketone level
Correct answer: B
Rationale: The correct answer is B: Glycosylated hemoglobin (A1C). Glycosylated hemoglobin reflects long-term glucose control over the past three months. Monitoring blood glucose levels provides information on the current glucose status and immediate control, but it does not give a comprehensive view of long-term control. Urine output and serum ketone levels are important indicators for other aspects of diabetes management, such as hydration status and ketone production during hyperglycemic episodes, but they do not directly reflect long-term glucose control.