HESI LPN
Adult Health 2 Exam 1
1. Which structures are located in the subcutaneous layer of the skin?
- A. Sebaceous and sweat glands
- B. Melanin and keratin
- C. Sensory receptors and hair follicles
- D. Adipose cells and blood vessels
Correct answer: D
Rationale: The correct answer is D: Adipose cells and blood vessels. The subcutaneous layer, also known as the hypodermis, primarily consists of adipose (fat) tissue and blood vessels. Adipose tissue provides insulation, energy storage, and cushioning, while blood vessels supply nutrients and oxygen. Sebaceous and sweat glands are located in the dermis, which is the layer beneath the epidermis. Melanin and keratin are components of the epidermis, responsible for skin color and waterproofing, respectively. Sensory receptors and hair follicles are found in the dermis and extend into the subcutaneous layer but are not exclusive to it.
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. During a community health fair, a nurse is providing education on the effects of smoking. What is the most important information to include?
- A. Smoking can lead to cosmetic issues like tooth staining.
- B. Smoking is a leading cause of preventable death worldwide.
- C. Smoking temporarily elevates mood and alertness.
- D. Smoking is an expensive habit.
Correct answer: B
Rationale: The correct answer is B: 'Smoking is a leading cause of preventable death worldwide.' This information is crucial as it highlights the severe health risks associated with smoking, emphasizing the importance of cessation for overall health. Choice A is incorrect because cosmetic issues like tooth staining are not as significant as the life-threatening consequences of smoking. Choice C is incorrect because although smoking may temporarily elevate mood and alertness due to nicotine, this does not outweigh the serious health implications. Choice D is incorrect as while smoking is indeed an expensive habit, the focus should be on the health-related consequences to stress the urgency of quitting.
4. The client is being taught about managing chronic kidney disease (CKD). Which dietary restriction should be emphasized the most?
- A. Limit consumption of high-fiber foods
- B. Restrict protein intake
- C. Avoid dairy products
- D. Increase fluid intake
Correct answer: B
Rationale: Restricting protein intake is vital in managing chronic kidney disease (CKD) as it helps decrease the kidneys' workload and slows down disease progression. High-fiber foods are generally beneficial for health and should not be limited in CKD management. Dairy products can be consumed moderately unless contraindicated. While adequate fluid intake is crucial, increasing intake excessively may not be suitable for all CKD patients, especially those with fluid restrictions. Therefore, the most crucial dietary restriction to emphasize in CKD management is restricting protein intake.
5. The nurse notes that a postoperative client's wound site is red and slightly swollen. What is the most appropriate action?
- A. Apply an ice pack
- B. Document the findings and monitor
- C. Notify the surgeon
- D. Clean the wound with sterile saline
Correct answer: C
Rationale: The correct answer is to notify the surgeon. Redness and swelling at a wound site can indicate an infection, which may require medical intervention. Applying an ice pack (choice A) is not appropriate without further assessment. While documenting the findings and monitoring (choice B) is important, it should be accompanied by notifying the surgeon for further evaluation. Cleaning the wound with sterile saline (choice D) may not be sufficient if an infection is present, so immediate communication with the surgeon is crucial.
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