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. What is the primary function of neutrophils?
- A. Heparin secretion
- B. Transport oxygen
- C. Phagocytotic action
- D. Antibody formation
Correct answer: C
Rationale: The correct answer is C: Phagocytotic action. Neutrophils are key components of the immune system, primarily involved in the phagocytosis of bacteria and other pathogens. Choice A, Heparin secretion, is incorrect as heparin is primarily secreted by mast cells and basophils. Choice B, Transport oxygen, is incorrect as this is mainly the function of red blood cells. Choice D, Antibody formation, is incorrect as antibody production is primarily carried out by B lymphocytes.
3. Which organ lies retroperitoneally?
- A. Kidneys
- B. Testicles
- C. Urinary bladder
- D. Pancreas
Correct answer: A
Rationale: The correct answer is A: Kidneys. The kidneys are located retroperitoneally, behind the peritoneum, providing structural protection and maintaining a stable position within the abdominal cavity. This location helps protect them from external physical trauma. Choices B, C, and D are incorrect because testicles, urinary bladder, and pancreas are not located retroperitoneally. Testicles are located in the scrotum, the urinary bladder is located in the pelvis, and the pancreas is located in the upper abdomen, not retroperitoneally.
4. The nurse is assessing an older resident with a history of Benign Prostatic Hypertrophy and identifies a distended bladder. What should the nurse do?
- A. Stand the client to void and run tap water within hearing distance before catheterizing
- B. Straight catheterize and if the residual urine volume is greater than 100 mL, clamp catheter
- C. Catheterize q2h and place in an indwelling catheter at the end of the prescribed 24hr period
- D. Catheterize with an indwelling catheter and if the residual volume is greater than 100 mL, inflate the balloon
Correct answer: D
Rationale: Prompt and appropriate management of urinary retention prevents complications like infection and bladder damage.
5. 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.
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