Nursing Elites

1. In a community health setting, which individual is at highest risk for contracting an HIV infection?

• A. 17-year-old who is sexually active with numerous partners
• B. 34-year-old homosexual in a monogamous relationship
• C. 30-year-old cocaine user who inhales and smokes drugs
• D. 45-year-old who has received two blood transfusions in the past 6 months

Correct answer: C

Rationale: The correct answer is C. Substance abuse, particularly using shared inhalation equipment like needles and pipes for drug inhalation, significantly increases the risk of contracting HIV. Choice A, the 17-year-old with multiple sexual partners, poses a risk of HIV transmission through sexual contact, but it is lower compared to the direct risk associated with sharing drug paraphernalia. Choice B, the 34-year-old homosexual in a monogamous relationship, is at lower risk since being in a monogamous relationship reduces exposure to HIV. Choice D, the 45-year-old who received blood transfusions, is also at lower risk as blood transfusions are now screened for HIV, decreasing the likelihood of transmission through this route.

2. The nurse is caring for a client with a chest tube after thoracic surgery. What is the most important assessment related to the chest tube?

• A. Ensure continuous bubbling in the water seal chamber
• B. Measure the amount of drainage every shift
• C. Keep the drainage system at the level of the chest
• D. Assess for subcutaneous emphysema around the insertion site

Correct answer: D

Rationale: The most important assessment related to a chest tube after thoracic surgery is to assess for subcutaneous emphysema around the insertion site. Subcutaneous emphysema can indicate air leakage from the pleural space, which can lead to serious complications such as a pneumothorax. Ensuring continuous bubbling in the water seal chamber is not the most critical assessment as it is a normal finding in a chest drainage system. While measuring the amount of drainage is important to monitor the client's condition, it is not as crucial as assessing for subcutaneous emphysema. Keeping the drainage system at the level of the chest helps maintain proper function but is not the most critical assessment in this scenario.

3. The nurse is caring for a client who has just returned from surgery with a urinary catheter in place. What is the most important action to prevent catheter-associated urinary tract infections (CAUTIs)?

• A. Irrigate the catheter daily
• B. Ensure the catheter bag is always below bladder level
• C. Change the catheter every 48 hours
• D. Administer prophylactic antibiotics

Correct answer: B

Rationale: The correct answer is to ensure the catheter bag is always below bladder level. This positioning helps prevent backflow of urine, reducing the risk of CAUTIs. Choice A, irrigating the catheter daily, is not recommended as it can introduce pathogens into the bladder. Changing the catheter too frequently (Choice C) can increase the risk of introducing pathogens. Administering prophylactic antibiotics (Choice D) is not the primary intervention for preventing CAUTIs and can lead to antibiotic resistance.

4. 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.

5. A client with a history of atrial fibrillation is prescribed warfarin. Which lab value should the nurse monitor to assess the effectiveness of this medication?

• A. Hemoglobin
• B. White blood cell count
• C. Platelet count
• D. INR

Correct answer: D

Rationale: The correct answer is D, INR (International Normalized Ratio). The INR is used to monitor the effectiveness of warfarin therapy. Warfarin is an anticoagulant medication commonly prescribed for conditions like atrial fibrillation. Monitoring the INR helps healthcare providers ensure that the blood is clotting within a therapeutic range. Hemoglobin (Choice A), white blood cell count (Choice B), and platelet count (Choice C) are not directly related to monitoring the effectiveness of warfarin therapy in this context.

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