Nursing Elites

1. When a client needs oxygen therapy, what is the highest flow rate that oxygen can be delivered via nasal cannula?

• A. 2 liters/minute
• B. 4 liters/minute
• C. 6 liters/minute
• D. 8 liters/minute

Correct answer: C

Rationale: The correct answer is 6 liters/minute. When a client requires oxygen therapy, the maximum flow rate that oxygen can be delivered via nasal cannula is 6 liters/minute. Nasal cannula can effectively deliver oxygen up to 6 liters/minute. Flow rates exceeding 6 liters/minute may lead to drying of the nasal passages and discomfort for the client. Higher flow rates, like 8 liters/minute, should be administered using a mask to ensure sufficient oxygenation. Options A, B, and D are incorrect as they indicate flow rates that surpass the recommended maximum for nasal cannula delivery.

2. What type of injury is associated with acute hyphema?

• A. orthopedic
• B. eye
• C. insect sting or snakebite
• D. gynecological trauma

Correct answer: B

Rationale: Acute hyphema is associated with an eye injury, typically resulting from blunt trauma. The presence of blood in the anterior chamber of the eye causes a half-moon appearance or a horizontal line across the globe when the client is upright. Choices A, C, and D are incorrect because acute hyphema is not related to orthopedic injuries, insect stings, snakebites, or gynecological trauma.

3. Distribution of a drug to various tissues depends on the amount of cardiac output to each type of tissue. Which tissue would receive the highest amount of cardiac output and thus the highest amount of a drug?

• A. skin
• B. adipose tissue
• C. skeletal muscle
• D. myocardium

Correct answer: D

Rationale: The correct answer is 'myocardium.' Highly perfused tissues include vital organs like the brain, heart, kidneys, adrenal glands, and liver. The myocardium, being heart muscle, receives the highest amount of cardiac output and thus the highest amount of a drug. Choices A, B, and C are incorrect because the skin and adipose tissue are poorly perfused, while skeletal muscle is less perfused compared to vital organs like the myocardium.

4. Which of the following devices may be applicable to a bedridden patient to address potential venous insufficiency?

• A. Shear-reducing mattress
• B. Sequential compression devices
• C. Hiking stockings
• D. Non-skid socks

Correct answer: B

Rationale: For a bedridden patient with potential venous insufficiency, sequential compression devices (SCDs) and compression stockings are appropriate choices. SCDs help improve venous return from the lower extremities by applying sequential pressure, aiding circulation. Compression stockings also assist in preventing blood from pooling in the legs by applying pressure to support venous return. Shear-reducing mattresses are not directly related to managing venous insufficiency, as they are designed to reduce friction and shear forces on the skin to prevent pressure ulcers. Non-skid socks are primarily used for fall prevention and have no direct impact on venous insufficiency.

5. Ms. Petty is having difficulty falling asleep. Which of the following measures promote sleep?

• A. exercising vigorously for 20 minutes each night starting at 9:30 p.m.
• B. taking a cool shower and drinking a hot cup of tea
• C. watching TV nightly until midnight
• D. getting a back rub and drinking a glass of warm milk

Correct answer: D

Rationale: Getting a back rub and drinking a glass of warm milk are appropriate measures to promote sleep as they can help relax the body and induce sleepiness. Exercising vigorously, as suggested in choice A, can be counterproductive as it stimulates the body rather than relaxing it, making it harder to fall asleep. Choice B, taking a cool shower and drinking a hot cup of tea, may also increase alertness due to the temperature changes and the caffeine in tea, which can interfere with falling asleep. Watching TV until midnight, as in choice C, exposes the individual to blue light and mental stimulation, making it harder to fall asleep. Therefore, choice D is the best option to promote sleep in this scenario.

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