Nursing Elites

1. Which of the following blood tests should be performed before a blood transfusion?

• A. Prothrombin and coagulation time
• B. Blood typing and cross-matching
• C. Bleeding and clotting time
• D. Complete blood count (CBC) and electrolyte levels

Correct answer: B

Rationale: Before administering a blood transfusion, it is crucial to perform blood typing and cross-matching to ensure compatibility between the donor's blood and the recipient's blood. This process helps prevent adverse reactions such as transfusion reactions, which can be life-threatening. Prothrombin and coagulation time, bleeding and clotting time, as well as CBC and electrolyte levels are important tests in other clinical contexts, but for blood transfusions, blood typing and cross-matching are essential to ensure patient safety.

2. In which of the following organs does the exchange of gases take place?

• A. Kidneys
• B. Lungs
• C. Liver
• D. Heart

Correct answer: B

Rationale: The exchange of gases, specifically oxygen and carbon dioxide, occurs in the lungs. In the lungs, oxygen from the air we breathe enters the bloodstream, while carbon dioxide is removed from the bloodstream and exhaled. This process is essential for respiration and supplying the body with oxygen for energy production. The kidneys filter waste from the blood to produce urine and regulate fluid balance (Choice A). The liver is involved in detoxification, protein synthesis, and producing bile (Choice C). The heart is responsible for pumping blood throughout the body to deliver oxygen and nutrients (Choice D).

3. According to the principles of standard precautions, when should gloves be worn by healthcare providers?

• A. Providing a back massage
• B. Feeding a client
• C. Providing hair care
• D. Providing oral hygiene

Correct answer: D

Rationale: Gloves should be worn when providing oral hygiene as it involves potential exposure to bodily fluids, aligning with the standard precautions to prevent the transmission of infections. Providing a back massage, feeding a client, and providing hair care do not typically involve direct exposure to bodily fluids, so wearing gloves is not necessary in these scenarios according to standard precautions.

4. Which of the following measures is not recommended to prevent pressure ulcers?

• A. Massaging the reddened area with lotion
• B. Using a water or air mattress
• C. Adhering to a schedule for positioning and turning
• D. Providing meticulous skin care

Correct answer: A

Rationale: Massaging a reddened area can cause further tissue damage by increasing pressure on already compromised skin. The other options, such as using specialized mattresses, adhering to repositioning schedules, and maintaining good skin care, are all recommended strategies to prevent pressure ulcers by reducing pressure and friction on vulnerable areas of the skin.

5. Which of the following patients is at greatest risk for developing pressure ulcers?

• A. An alert chronic arthritic patient treated with steroids and aspirin
• B. An 88-year-old incontinent patient with gastric cancer who is confined to bed at home
• C. An apathetic 63-year-old COPD patient receiving nasal oxygen via cannula
• D. A confused 78-year-old patient with congestive heart failure (CHF) who requires assistance to get out of bed

Correct answer: B

Rationale: The correct answer is B. An elderly patient who is incontinent, bedridden, and suffering from a serious illness like gastric cancer is at the highest risk for developing pressure ulcers. Being bedridden and incontinent increases the pressure on certain areas of the body, leading to tissue damage and the development of pressure ulcers. Additionally, the patient's age and underlying health condition further contribute to their risk. It is crucial to identify and address such risk factors promptly to prevent the occurrence of pressure ulcers in vulnerable patients.

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