HESI RN
Biology Practice Test
1. What characteristic of water allows for hydrogen bonding between molecules?
- A. Its covalent bonds
- B. Its cohesive properties
- C. Its high specific heat
- D. Its polar nature
Correct answer: D
Rationale: The correct answer is D: Its polar nature. Water is a polar molecule with a partial positive charge on hydrogen atoms and a partial negative charge on oxygen atoms. This polarity allows water molecules to form hydrogen bonds with each other. Choice A, covalent bonds, is incorrect because while water indeed has covalent bonds, they do not directly enable hydrogen bonding. Choice B, cohesive properties, is incorrect as cohesion refers to water's ability to stick to other substances, not the specific characteristic that allows for hydrogen bonding. Choice C, high specific heat, is also incorrect as it refers to water's ability to resist changes in temperature, not its property that leads to hydrogen bonding.
2. A client with rheumatoid arthritis is experiencing chronic pain in both hands and wrists. Which information about the client is most important for the nurse to obtain when planning care?
- A. Amount of support provided by family members
- B. Measurement of pain using a scale of 0 to 10
- C. The ability to perform ADLs
- D. Nonverbal behaviors exhibited when pain occurs
Correct answer: C
Rationale: Assessing the client's ability to perform activities of daily living (ADLs) is crucial in planning care for someone with chronic pain. Understanding the client's functional status helps the nurse tailor interventions to promote independence and enhance quality of life. It provides valuable insight into the impact of pain on daily activities and guides the development of a comprehensive care plan to address the client's specific needs. While family support, pain measurement, and nonverbal behaviors are important aspects to consider in caring for a client with chronic pain, the ability to perform ADLs directly reflects the client's independence and quality of life, making it the most crucial information to obtain.
3. A female client requests that her husband be allowed to stay in the room during the admission assessment. While interviewing the client, the nurse notes a discrepancy between the client’s verbal and nonverbal communication. What action should the nurse take?
- A. Pay close attention and document the nonverbal messages.
- B. Ask the client’s husband to interpret the discrepancy.
- C. Ignore the nonverbal behavior and focus on the client’s verbal messages.
- D. Integrate the verbal and nonverbal messages and interpret them as one.
Correct answer: A
Rationale: When a nurse observes a discrepancy between a client's verbal and nonverbal communication, it is essential to pay close attention and document the nonverbal messages. Nonverbal cues, such as body language and facial expressions, can provide valuable insights into the client's emotional state, feelings, and concerns that may not be expressed verbally. By documenting these nonverbal messages, the nurse can gain a more comprehensive understanding of the client's communication and address any potential underlying issues. Asking the client's husband to interpret the discrepancy (Choice B) may not always provide an accurate understanding of the client's nonverbal cues. Ignoring the nonverbal behavior (Choice C) could lead to missing important cues affecting the client's care. Integrating verbal and nonverbal messages (Choice D) is important, but initially focusing on documenting and understanding the nonverbal cues can enhance the nurse's assessment and communication with the client.
4. The nurse is preparing to administer the first dose of hydrochlorothiazide (HydroDIURIL) 50 mg to a patient who has a blood pressure of 160/95 mm Hg. The nurse notes that the patient had a urine output of 200 mL in the past 12 hours. The nurse will perform which action?
- A. Administer the medication as ordered.
- B. Encourage the patient to drink more fluids.
- C. Hold the medication and request an order for serum BUN and creatinine.
- D. Request an order for serum electrolytes and administer the medication.
Correct answer: C
Rationale: The correct action is to hold the medication and request an order for serum BUN and creatinine. Thiazide diuretics, such as hydrochlorothiazide, are contraindicated in renal failure. In this case, the patient has oliguria, which is a reduced urine output, indicating potential renal insufficiency. Before administering the diuretic, it is crucial to evaluate the patient's renal function through serum BUN and creatinine levels. Encouraging the patient to drink more fluids (Choice B) may not address the underlying issue of renal function. Administering the medication as ordered (Choice A) without assessing renal function can be harmful. Requesting serum electrolytes and administering the medication (Choice D) overlooks the need for a specific evaluation of renal function in this scenario.
5. When a 3-year-old boy asks a nurse why his baby sister is eating his mommy’s breast, how should the nurse respond? (Select the response that does not apply.)
- A. Remind him that his mother breastfed him too
- B. Clarify that breastfeeding is the mother’s choice
- C. Reassure the older brother that it does not hurt his mother
- D. Explain that newborns get milk from their mothers in this way
Correct answer: A
Rationale: In this scenario, the nurse should avoid reminding the older sibling about his own breastfeeding experience as it does not directly address the question posed by the boy. Providing simple explanations about breastfeeding and newborn feeding patterns helps the older sibling understand the natural process without bringing up personal experiences. Choice B is correct because clarifying that breastfeeding is the mother's choice helps the older sibling understand the concept of personal decisions. Choice C is appropriate as reassuring the older brother that it does not hurt his mother addresses a common concern children may have. Choice D is also suitable as it explains in simple terms how newborns receive milk from their mothers.