Nursing Elites

1. What is the term for the tendency of a drug to combine with its receptor?

• A. potency
• B. efficacy
• C. kinetics
• D. affinity

Correct answer: D

Rationale: The correct answer is 'affinity.' Affinity refers to the close relationship or mutual attraction between a drug and its receptor, indicating the strength of the drug-receptor bonding. Potency (Choice A) is related to the dose of a drug needed to produce a specific effect. Efficacy (Choice B) refers to a drug's ability to generate the desired effect. Kinetics (Choice C) deals with forces affecting the motion of material bodies or changes in a system, which is not directly associated with the bonding between a drug and its receptor.

2. For which of the following conditions might blood be drawn to assess uric acid levels?

• A. asthma
• B. gout
• C. diverticulitis
• D. meningitis

Correct answer: B

Rationale: Uric acid levels are commonly assessed in patients with gout. Gout is a type of arthritis caused by the buildup of uric acid crystals in the joints, leading to inflammation and pain. Monitoring uric acid levels helps in diagnosing and managing gout. Asthma, diverticulitis, and meningitis are not conditions where blood tests for uric acid levels are typically necessary. Asthma is a respiratory condition, diverticulitis involves inflammation of the digestive tract, and meningitis is an infection of the meninges in the brain and spinal cord.

3. A nurse is assisting with data collection of a client who has sustained circumferential burns of both legs. What should the nurse examine first?

• A. Heart rate
• B. Peripheral pulses
• C. Blood pressure (BP)
• D. Radial pulse rate

Correct answer: B

Rationale: The priority assessment for a client with circumferential burns to the legs is to examine peripheral pulses. This is essential to ensure adequate circulation to the extremities. Circumferential burns can lead to compartment syndrome, causing decreased circulation to the affected limbs. Checking peripheral pulses is crucial to monitor for any signs of compromised circulation. While heart rate and blood pressure are important assessments in general, in the context of circumferential burns, the immediate concern is the risk of impaired circulation to the extremities. Therefore, assessing peripheral pulses takes precedence in this situation.

4. When observing a dressing change by a graduate nurse on a Stage III pressure ulcer to the greater trochanter by the staff nurse, a need for further teaching is indicated after the following observation by the nurse:

• A. The new graduate nurse irrigates the pressure ulcer with 50cc of NS.
• B. The new graduate irrigates the pressure ulcer with half-strength hydrogen peroxide.
• C. The new graduate packs the wound with sterile kerlix soaked in NS.
• D. The new graduate applies a Duoderm dressing over the wound after cleansing.

Correct answer: B

Rationale: The correct answer is that the new graduate irrigates the pressure ulcer with half-strength hydrogen peroxide. Pressure ulcers should not be cleaned with substances that are cytotoxic, such as hydrogen peroxide or betadine. This can cause further damage to the wound and delay the healing process. Choice A is incorrect because irrigating the pressure ulcer with normal saline is an appropriate practice. Choice C is incorrect because packing the wound with sterile kerlix soaked in normal saline is also an appropriate step. Choice D is incorrect because applying a Duoderm dressing after cleansing is a standard procedure in wound care.

5. Which of the following client statements indicates adequate understanding of preparation for electroencephalography?

• A. "I don't need to eat or drink after midnight."?
• B. "I need to wash my hair before the test."?
• C. "I need to remove metal jewelry."?
• D. "I can't take aspirin before the test."?

Correct answer: B

Rationale: The correct statement is, 'I need to wash my hair before the test.' Washing the hair is necessary to remove hair products that could interfere with electrode attachment to the scalp. Restricting food or drink is not required, except for avoiding caffeinated beverages. Removing metal jewelry is unnecessary for an electroencephalography procedure. Aspirin does not need to be avoided before the test; medications like anticonvulsants, tranquilizers, barbiturates, and sedatives are the ones that might need to be held.

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