HESI LPN
HESI Fundamentals Study Guide
1. A nurse in a provider's office is preparing to assess a young adult client's musculoskeletal system as part of a comprehensive physical examination. Which of the following findings should the nurse expect?
- A. Concave thoracic spine posteriorly
- B. Exaggerated lumbar curvature
- C. Concave lumbar spine posteriorly
- D. Exaggerated thoracic curvature
Correct answer: B
Rationale: When assessing a young adult's musculoskeletal system, the nurse should expect an exaggerated lumbar curvature (lordosis). This is a normal finding in young adults due to the natural curvature of the spine. Concave thoracic spine posteriorly (choice A) and concave lumbar spine posteriorly (choice C) are not typical findings as the spine should have normal curvatures. Exaggerated thoracic curvature (choice D) is also not a typical finding in young adults.
2. The nurse is providing care for a client who is receiving total parenteral nutrition (TPN). Which laboratory value should the nurse monitor closely to assess for complications?
- A. Serum potassium
- B. Blood glucose
- C. Serum sodium
- D. Serum calcium
Correct answer: B
Rationale: The correct answer is B: Blood glucose. When caring for a client receiving total parenteral nutrition (TPN), monitoring blood glucose levels is essential due to the increased risk of hyperglycemia associated with TPN infusion. Elevated blood glucose levels can lead to complications such as hyperglycemia, which can be harmful to the client. While monitoring serum potassium (Choice A), serum sodium (Choice C), and serum calcium (Choice D) are also important aspects of care, when specifically considering TPN administration, blood glucose monitoring takes precedence due to the potential for significant complications related to glucose imbalances.
3. A client with a fractured femur has a BP of 140/94 mmHg and denies any history of HTN. Which of the following actions should the nurse take first?
- A. Request a prescription for an antihypertensive medication.
- B. Ask the client if they are having pain.
- C. Request a prescription for an antianxiety medication.
- D. Return in 30 minutes to recheck the client’s BP.
Correct answer: B
Rationale: The correct action is to ask the client if they are having pain. Pain can lead to temporary increases in blood pressure. Addressing pain as a potential cause is the initial step before considering medication adjustments. Requesting an antihypertensive medication or an antianxiety medication without assessing pain first would not address the immediate concern. Returning to recheck the BP can be done after addressing the potential pain issue.
4. When assessing a client’s heart sounds, the nurse hears a scratching sound during both systole and diastole. These sounds become more distinct when the nurse has the client sit up and lean forward. The nurse should document the presence of a:
- A. Pericardial friction rub
- B. Heart murmur
- C. S3 heart sound
- D. S4 heart sound
Correct answer: A
Rationale: A pericardial friction rub is characterized by a scratching sound that occurs during both systole and diastole. It becomes more distinct when the client is sitting up and leaning forward. This indicates an inflammation of the pericardial sac rubbing against the layers of the heart. Heart murmurs (choice B) are abnormal heart sounds caused by turbulent blood flow, not by friction like in a pericardial rub. S3 and S4 heart sounds (choices C and D) are additional heart sounds related to abnormal ventricular filling, not to pericardial friction rubs.
5. A charge nurse is teaching a newly licensed nurse about the care of a client who has methicillin-resistant Staphylococcus aureus (MRSA). Which of the following statements should the charge nurse identify as an indication that the newly licensed nurse understands the teaching?
- A. I should obtain a specimen for culture and sensitivity after the first dose of an antimicrobial.
- B. MRSA is usually resistant to vancomycin, so another antimicrobial will be prescribed.
- C. I will protect others from exposure when I transport the client outside the room.
- D. To decrease resistance, antimicrobial therapy is discontinued when the client is no longer febrile.
Correct answer: C
Rationale: The correct answer is C. Protecting others from exposure when transporting a client with MRSA is crucial in preventing the spread of infection. This statement demonstrates understanding of infection control measures. Stating that MRSA is usually resistant to vancomycin (choice B) is incorrect; vancomycin is often effective against MRSA. Obtaining a specimen for culture and sensitivity after the first dose of an antimicrobial (choice A) is unnecessary and not indicated. Discontinuing antimicrobial therapy when the client is no longer febrile (choice D) is incorrect because antimicrobial therapy should be completed as prescribed to prevent the development of resistant strains.
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