When entering the room of a patient with TB, which mask should be used?

Correct Answer: B

Rationale: A high-efficiency particulate-absorbing (HEPA) mask, rather than a standard surgical mask, should be used when entering the patient's room because the HEPA mask can filter out 100% of small airborne particles.

Correct Answer: C

Rationale: A diagnosis of chronic bronchitis is based on a history of having a productive cough for 3 months for at least 2 consecutive years. There is no family tendency for chronic bronchitis.

Correct Answer: A

Rationale: Assessment of the patient's breath sounds will help determine how effectively the patient is ventilating and whether rapid intubation may be necessary. The length of time the attack has persisted is not as important as determining the patient's status at present.

Correct Answer: A

Rationale: Alkali metals react with oxygen to form basic metallic oxides, as shown in the reaction M + O₂ ⁴†’ MO₂.

Correct Answer: A

Rationale: Informed consent is a priority for operative procedures like bronchoscopy and must be on the chart.