HESI LPN
Adult Health 1 Final Exam
1. Which intervention is most effective in preventing the spread of infection in a healthcare setting?
- A. Wearing gloves
- B. Using hand sanitizer
- C. Practicing hand hygiene
- D. Disinfecting surfaces
Correct answer: C
Rationale: Practicing hand hygiene is the most effective measure to prevent the spread of infection in healthcare settings. While wearing gloves, using hand sanitizer, and disinfecting surfaces are important infection control measures, they are not as effective as proper hand hygiene. Hand hygiene, including handwashing with soap and water or using alcohol-based hand sanitizers, is crucial in preventing the transmission of pathogens from one person to another, making it the best choice among the options provided. Wearing gloves primarily protects the wearer and is not a substitute for hand hygiene. Using hand sanitizer is helpful but may not be as effective as proper handwashing. Disinfecting surfaces is important but does not address the direct transmission of pathogens through hand contact, which hand hygiene effectively prevents.
2. A client reports feeling dizzy and light-headed when standing up. What is the nurse's best initial action?
- A. Instruct the client to sit or lie down
- B. Monitor blood pressure and pulse
- C. Administer an anti-dizziness medication
- D. Increase fluid intake
Correct answer: B
Rationale: The correct answer is B: Monitor blood pressure and pulse. When a client reports feeling dizzy and light-headed when standing up, the nurse's best initial action should be to monitor the client's blood pressure and pulse. These symptoms are indicative of orthostatic hypotension, which can be confirmed by changes in blood pressure and pulse when moving from lying to standing positions. Instructing the client to sit or lie down may provide temporary relief but does not address the underlying cause. Administering an anti-dizziness medication should not be the initial action without assessing vital signs first. Increasing fluid intake is important for overall health but is not the priority in this situation where vital sign monitoring is needed to assess for orthostatic hypotension.
3. The nurse is caring for a client who has just returned from surgery with an indwelling urinary catheter in place. What is the most important assessment for the nurse to make?
- A. Check for catheter patency
- B. Assess the color of the urine
- C. Measure the urine output
- D. Ensure the catheter tubing is secure
Correct answer: C
Rationale: The most important assessment for the nurse to make in this situation is to measure the urine output. This assessment is crucial in monitoring kidney function and fluid balance after surgery. While checking for catheter patency is important, it is not as critical as measuring urine output. Assessing the color of the urine can provide some information about kidney function, but measuring output gives a more accurate assessment. Ensuring the catheter tubing is secure is essential to prevent dislodgement but is not the most critical assessment to make at this time.
4. The client with high blood pressure is being taught by the nurse to avoid adding salt during cooking. What effect does sodium have on blood pressure?
- A. It decreases the viscosity of blood
- B. It leads to increased fluid retention
- C. It causes vasoconstriction of the blood vessels
- D. It enhances the excretion of potassium
Correct answer: C
Rationale: The correct answer is C: 'It causes vasoconstriction of the blood vessels.' Sodium can lead to vasoconstriction, which narrows the blood vessels, increasing resistance to blood flow and subsequently raising blood pressure. Choices A, B, and D are incorrect. Sodium does not decrease blood viscosity, but it can lead to fluid retention, which increases blood volume and pressure. It does not enhance the excretion of potassium; instead, high sodium intake can lead to potassium excretion by the kidneys.
5. What is the most important information the nurse should teach a diabetic client about foot care?
- A. Inspect feet daily
- B. Wear cotton socks
- C. Use lukewarm water to wash feet
- D. Cut nails straight across
Correct answer: A
Rationale: The correct answer is to inspect feet daily. For diabetic clients, daily foot inspection is crucial in preventing complications like infections and ulcers. By checking their feet regularly, clients can identify any issues early and seek appropriate medical care. The other choices are important aspects of foot care for diabetic clients but not as critical as daily foot inspections. Wearing cotton socks helps in moisture control, using lukewarm water to wash feet helps prevent skin damage, and cutting nails straight across prevents ingrown nails. However, daily foot inspection is the most vital as it allows for early detection of any potential problems, which is key in diabetic foot care.
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