HESI LPN
Adult Health 2 Exam 1
1. What is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space?
- A. Filtration
- B. Diffusion
- C. Osmosis
- D. Active transport
Correct answer: C
Rationale: The correct answer is C: Osmosis. Osmosis is the homeostatic cellular transport mechanism that moves water from a hypotonic to a hypertonic fluid space to maintain cellular balance. In osmosis, water moves across a semi-permeable membrane from an area of low solute concentration (hypotonic) to an area of high solute concentration (hypertonic). This process helps regulate the water content inside cells. Choices A, B, and D are incorrect. Filtration involves the movement of solutes and solvents through a membrane due to a pressure difference, diffusion is the movement of solutes from an area of high concentration to low concentration, and active transport requires energy to move substances against their concentration gradient.
2. When teaching a diabetic client about foot care, what information is most important?
- A. Inspect feet daily
- B. Wear cotton socks
- C. Use lukewarm water to wash feet
- D. Cut nails straight across
Correct answer: A
Rationale: Inspecting feet daily is crucial for diabetic clients as it can help prevent complications like infections and ulcers. This practice allows for early detection of any foot issues, enabling timely intervention. While wearing cotton socks (choice B) is beneficial as they absorb moisture and reduce the risk of fungal infections, it is not as critical as daily foot inspection. Using lukewarm water to wash feet (choice C) is important to prevent burns or skin damage in diabetic clients with decreased sensation, but it is not as crucial as daily foot inspection. Cutting nails straight across (choice D) is essential to prevent ingrown nails, but it is not the most important information when educating diabetic clients about foot care.
3. A client comes to the antepartal clinic and tells the nurse that she is 6 weeks pregnant. Which sign is she most likely to report?
- A. Decreased sexual libido
- B. Amenorrhea
- C. Quickening
- D. Nocturia
Correct answer: B
Rationale: Amenorrhea is the absence of menstrual periods and is a common early sign of pregnancy, typically reported by a client who is 6 weeks pregnant. Decreased sexual libido (Choice A) may or may not be experienced in early pregnancy, but it is not as specific as amenorrhea. Quickening (Choice C) refers to fetal movements felt by the mother, which usually occurs around 18-20 weeks of pregnancy, not at 6 weeks. Nocturia (Choice D) is waking up at night to urinate and is not typically associated with early pregnancy.
4. A client is scheduled for an abdominal ultrasound in the morning and has been instructed to fast overnight. The client asks the nurse why fasting is necessary. What is the best response?
- A. It helps reduce the production of intestinal gases.
- B. It ensures clearer imaging by emptying the stomach.
- C. It prevents the risk of aspiration during the procedure.
- D. It is a standard procedure for all surgical interventions.
Correct answer: B
Rationale: The correct answer is B: 'It ensures clearer imaging by emptying the stomach.' Fasting before an abdominal ultrasound is essential to empty the stomach, allowing for better visualization of the abdominal organs. This improves the quality of the imaging and enhances diagnostic accuracy. Choices A, C, and D are incorrect because reducing intestinal gases, preventing aspiration, and being a standard procedure for surgical interventions are not the primary reasons for fasting before an abdominal ultrasound.
5. A client undergoing chemotherapy reports a sudden onset of severe back pain. What should the nurse do first?
- A. Administer pain medication as prescribed
- B. Assess the pain's nature and intensity
- C. Encourage the client to rest and apply a hot pack
- D. Notify the physician immediately
Correct answer: B
Rationale: The correct first action for the nurse is to assess the nature and intensity of the pain. This initial assessment is crucial in determining the underlying cause of the pain, whether it is related to the chemotherapy or another issue. Understanding the pain's characteristics will guide the nurse in implementing appropriate interventions and seeking timely medical assistance if needed. Administering pain medication without a thorough assessment may mask important symptoms and delay necessary treatment. Encouraging rest and hot pack application may be appropriate interventions but should come after assessing the pain. Notifying the physician immediately can be important but should follow the initial assessment to provide comprehensive information to the healthcare provider.
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