Nursing Elites

1. Which of the following viruses is most likely to be acquired through casual contact with an infected individual?

• A. influenza virus
• B. herpes virus
• C. cytomegalovirus (CMV)
• D. human immunodeficiency virus (HIV)

Correct answer: A

Rationale: The correct answer is influenza virus. Influenza virus is most likely to be acquired through casual contact with an infected individual as it is transmitted through respiratory droplets. Herpes virus is primarily transmitted by direct contact, such as skin-to-skin contact, making it less likely to be acquired through casual contact. HIV is mainly transmitted through blood and body fluids like semen and vaginal fluids, not through casual contact. Cytomegalovirus (CMV) is an opportunistic infection commonly affecting immunocompromised individuals and is usually transmitted through close personal contact, not casual contact.

2. A client with sleep apnea has been ordered a CPAP machine. Which action could the RN delegate to a nursing assistant?

• A. Reminding the client to apply the CPAP at bedtime
• B. Obtaining every three-hour oxygen saturation levels
• C. Teaching the client how to turn on the CPAP machine
• D. Assessing for fatigue or depression caused by poor sleep

Correct answer: A

Rationale: The correct answer is reminding the client to apply the CPAP at bedtime. This task can be safely delegated to a nursing assistant as it involves a simple and routine reminder. Option B, obtaining oxygen saturation levels, requires a higher level of training and interpretation of results, making it more appropriate for an RN. Option C, teaching the client how to turn on the CPAP machine, involves educating the client and ensuring proper use of medical equipment, which is within the RN's scope of practice. Option D, assessing for fatigue or depression, requires a comprehensive evaluation that involves interpreting symptoms and identifying underlying causes, making it more suitable for an RN to address.

3. A client needs to rapidly achieve a therapeutic plasma drug concentration of a medication. Rather than wait for steady state to be achieved, the physician might order:

• A. a maintenance dose.
• B. a loading dose.
• C. a medication with no first-pass effect.
• D. the medication to be given intravenously.

Correct answer: B

Rationale: To rapidly achieve a therapeutic plasma drug concentration, a loading or priming dose is ordered. This dose quickly establishes the desired drug level. It is calculated by multiplying the volume of distribution by the desired plasma drug concentration. A maintenance dose, like choice A, is used to maintain the therapeutic level after the loading dose. Waiting for steady state without a loading dose would take five drug half-lives. Choice C, a medication with no first-pass effect, does not directly address the need for rapid attainment of therapeutic levels. While intravenous administration (choice D) offers excellent bioavailability, a single dose by this route may not achieve the desired therapeutic plasma concentration as rapidly as a loading dose.

4. Which electrolyte imbalance would be the nurse's priority concern in the burn client?

• A. Hypernatremia
• B. Hyperkalemia
• C. Hypoalbuminemia
• D. Hypermagnesemia

Correct answer: B

Rationale: The correct answer is hyperkalemia. In a burn client, the nurse's priority concern is hyperkalemia due to cell lysis, which releases potassium into the bloodstream. This can lead to dangerous levels of potassium in the blood. Hypernatremia (Choice A) is less likely in burn clients. Hypoalbuminemia (Choice C) can occur but is not the priority in the immediate management of a burn client. Hypermagnesemia (Choice D) is not typically associated with burn injuries.

5. The client develops a tension pneumothorax. Assessment is expected to reveal?

• A. Sudden hypertension and bradycardia
• B. Productive cough with yellow mucus
• C. Tracheal deviation and dyspnea
• D. Sudden development of profuse hemoptysis and weakness

Correct answer: C

Rationale: In a tension pneumothorax, the trachea deviates to the unaffected side due to increased pressure in the affected pleural space, causing respiratory distress. Dyspnea is a hallmark symptom as the lung on the affected side collapses, leading to difficulty in breathing. Sudden hypertension and bradycardia (Choice A) are not typical findings of tension pneumothorax. Productive cough with yellow mucus (Choice B) is more suggestive of respiratory infections rather than a tension pneumothorax. Sudden development of profuse hemoptysis and weakness (Choice D) is not characteristic of tension pneumothorax presentation.

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