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. The nurse notices that a family is waiting at the nursing station desk for its loved one to be brought to the unit for admission during a change-of-shift report. The nurse should:

• A. request that the family wait for its loved one in the client's room and wait to resume the report until the family has left the desk area.
• B. request that a nursing assistant bring coffee for the family while it waits at the desk and continue with the report.
• C. request that the family have a seat in the station rather than stand while awaiting its loved one.
• D. request that the family wait for its loved one in the Emergency Department waiting room.

Correct answer: A

Rationale: To protect the privacy of clients and the confidentiality of the information shared in a change-of-shift report, the family should be asked to wait in the client's room. This ensures that sensitive information is not overheard. The report should be resumed only after the family has left the desk area to maintain confidentiality. Choice B is incorrect as bringing coffee does not address the issue of maintaining confidentiality. Choice C is incorrect as standing or sitting in the station does not prevent the family from overhearing confidential information. Choice D is incorrect as the Emergency Department waiting room is not the appropriate setting for waiting during a unit admission.

3. The nurse provides a postoperative client with an analgesic medication and darkens the room before the client goes to sleep for the night. The nurse's actions:

• A. help decrease stimuli from the cerebral cortex.
• B. stimulate hormonal changes in the brain.
• C. help the client's circadian rhythm.
• D. alert the hypothalamus in the brain.

Correct answer: A

Rationale: The nurse's actions of providing an analgesic medication and darkening the room aim to decrease stimuli from the cerebral cortex. Reduction of environmental stimuli, especially light and noise, from the cerebral cortex, which is an area of arousal, facilitates sleep. By decreasing input to this area, the client is more likely to fall asleep and stay asleep. Choices B, C, and D are incorrect because the scenario does not involve stimulating hormonal changes, influencing the circadian rhythm, or alerting the hypothalamus.

4. When should the biohazard emblem be affixed to containers according to the orientation nurse educator reviewing the biohazard legend with a class of new employees?

• A. when there is presence of blood and body fluids.
• B. when there is the need for droplet precautions.
• C. when there is contact isolation.
• D. when there is the potential for airborne transmission.

Correct answer: A

Rationale: The correct answer is 'when there is presence of blood and body fluids.' When handling body substances like blood and body fluids, the risk of transmission of infections increases. Federal regulations mandate warning labels on containers to alert employees and waste collectors. The biohazard emblem consists of a three-ring symbol overlaying a central concentric ring. Blood, wound drainage, feces, and urine are examples of body fluids that can transmit infections and diseases to others. The other choices, B, C, and D, are incorrect because the presence of the biohazard emblem is specifically linked to the handling of blood and body fluids, not to droplet precautions, contact isolation, or airborne transmission.

5. 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.

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