HESI LPN
Adult Health 1 Exam 1
1. A client with a severe peanut allergy accidentally ingested peanut-containing food and is experiencing anaphylaxis. What is the nurse's priority action?
- A. Administer an epinephrine injection
- B. Call for immediate medical help
- C. Monitor airway, breathing, and circulation
- D. All of the above
Correct answer: A
Rationale: The priority action for a client experiencing anaphylaxis due to a severe peanut allergy is to administer an epinephrine injection. Epinephrine is the first-line treatment for anaphylaxis as it can rapidly reverse the severe allergic reaction. While calling for immediate medical help is important, administering epinephrine takes precedence because it can be life-saving in this situation. Monitoring airway, breathing, and circulation is essential in managing anaphylaxis, but administering epinephrine is the priority action to halt the progression of the allergic reaction and stabilize the client's condition. Therefore, 'Administer an epinephrine injection' is the most critical initial intervention.
2. A client with pneumonia is experiencing difficulty expectorating thick secretions. What intervention should the nurse implement to assist the client?
- A. Administer antibiotics as prescribed
- B. Perform chest physiotherapy
- C. Encourage increased fluid intake
- D. Provide humidified oxygen
Correct answer: C
Rationale: The correct intervention for a client experiencing difficulty expectorating thick secretions due to pneumonia is to encourage increased fluid intake. Increasing fluid intake helps to thin secretions, making them easier to expectorate. Administering antibiotics (Choice A) is important in treating pneumonia but does not directly address the issue of thick secretions. Chest physiotherapy (Choice B) may help in some cases, but increasing fluid intake is a more straightforward and effective intervention. Providing humidified oxygen (Choice D) can help with oxygenation but does not directly address the problem of thick secretions.
3. The nurse is assessing a client with chronic liver disease. Which lab value is most concerning?
- A. Elevated AST and ALT levels
- B. Decreased albumin level
- C. Elevated bilirubin level
- D. Prolonged PT/INR
Correct answer: D
Rationale: In a client with chronic liver disease, a prolonged PT/INR is the most concerning lab value. This finding indicates impaired liver function affecting the synthesis of clotting factors, leading to an increased risk of bleeding. Elevated AST and ALT levels (Choice A) indicate liver cell damage but do not directly correlate with the risk of bleeding. A decreased albumin level (Choice B) is common in liver disease but is not the most concerning in terms of bleeding risk. Elevated bilirubin levels (Choice C) are seen in liver disease but do not directly reflect the risk of bleeding as PT/INR values do.
4. 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.
5. When using a metered-dose inhaler (MDI), which step is most important for ensuring effective medication delivery?
- A. Exhale completely before using the inhaler
- B. Inhale quickly while pressing down on the inhaler
- C. Shake the inhaler for 10 seconds before use
- D. Hold breath for 5 seconds after inhaling
Correct answer: A
Rationale: The correct step to ensure effective medication delivery when using a metered-dose inhaler (MDI) is to exhale completely before using the inhaler. This action helps create more space in the lungs for the medication to reach deeply into the airways. Inhaling quickly while pressing down on the inhaler (Choice B) may cause the medication to impact the throat rather than reaching the lungs. Shaking the inhaler for 10 seconds before use (Choice C) is important to mix the medication but not the most crucial step for effective delivery. While holding the breath for 5 seconds after inhaling (Choice D) can help the medication stay in the lungs momentarily, exhaling completely before inhalation is more critical for optimal drug deposition.
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