Why is a precise amount of oxygen necessary for a patient with COPD to prevent which complication?

A. Cardiac arrest related to increased partial pressure of carbon dioxide in arterial blood (PaCO2)

B. Circulatory overload due to hypervolemia

C. Respiratory excitement

D. Inhibition of the respiratory hypoxic stimulus

Correct Answer: D
Rationale: In patients with COPD, the respiratory drive is often stimulated by low oxygen levels. Administering too much oxygen can inhibit this hypoxic drive, leading to respiratory depression and potential respiratory failure. Therefore, it is crucial to carefully regulate the oxygen therapy to prevent the inhibition of the respiratory hypoxic stimulus in COPD patients.

Which type of illness is characterized by severe symptoms of relatively short duration?

• A. Chronic Illness
• B. Acute Illness
• C. Pain
• D. Syndrome

Correct Answer: B
Rationale: The correct answer is B: Acute Illness. Acute illnesses are characterized by the sudden onset of severe symptoms that typically last for a short duration. These conditions usually resolve within a defined period, unlike chronic illnesses that persist over a longer time frame. Choices C and D, Pain and Syndrome, are not specific types of illnesses but rather symptoms or clinical manifestations that can occur in various health conditions.

A healthcare professional realizes that the wrong medication has been administered to a client. Which of the following actions should the healthcare professional take first?

• A. Notify the provider.
• B. Report the incident to the healthcare facility's manager.
• C. Monitor vital signs.
• D. Fill out an incident report.

Correct Answer: C: Monitor vital signs.
Rationale: In a situation where the wrong medication has been administered to a client, the immediate priority is to assess and monitor the client's vital signs to identify any adverse effects of the incorrect medication. This action takes precedence over notifying the provider, reporting the incident, or filling out an incident report. Monitoring vital signs allows for timely recognition and intervention if the client experiences any negative reactions to the wrong medication, ensuring their safety and well-being.

A client experiencing acute dyspnea and diaphoresis reports anxiety and difficulty breathing. Vital signs include HR 117/min, respirations 38/min, temperature 38.4 C (101.2 F), and blood pressure 100/54 mm Hg. What should the nurse prioritize?

• A. Notify the provider.
• B. Administer heparin via IV infusion.
• C. Administer oxygen therapy.
• D. Obtain a spiral CT scan.

Correct Answer: C: Administer oxygen therapy.
Rationale: In a client with acute dyspnea, diaphoresis, tachycardia, tachypnea, fever, and hypotension, the priority is to ensure adequate oxygenation. Administering oxygen therapy helps improve oxygenation levels and stabilize the client's condition. This intervention takes precedence over notifying the provider, administering heparin, or obtaining a CT scan, as oxygen therapy addresses the client's immediate need for respiratory support.

A client with active tuberculosis is prescribed isoniazid, rifampin, pyrazinamide, and ethambutol. Which statement by the client indicates an understanding of the teaching?

• A. I can substitute one medication for another if I run out because they all fight infection.
• B. I will wash my hands each time I cough.
• C. I am glad I don't have to have any more sputum specimens.
• D. I don't need to worry about where I go once I start taking my medications.

Correct Answer: B
Rationale: The correct statement indicating understanding of tuberculosis medication regimen is 'I will wash my hands each time I cough.' This statement shows knowledge of infection control practices to prevent the spread of tuberculosis. Washing hands after coughing helps in reducing the transmission of the disease to others. The other options are incorrect. Option A is incorrect as each medication in the regimen has a specific role, and substituting one for another can compromise the effectiveness of treatment. Option C is incorrect as obtaining sputum specimens is essential for monitoring treatment response. Option D is incorrect as the client should still adhere to infection control measures and avoid exposing others to tuberculosis.