Which patient requires rapid assessment due to a muffled voice?

Correct Answer: A

Rationale: The patient's clinical manifestation of a muffled voice suggests a possible peritonsillar abscess that could lead to an airway obstruction requiring rapid assessment and potential treatment. The other patients do not have diagnoses or symptoms that indicate any life-threatening problems.

Correct Answer: C

Rationale: The dressing taped on three sides will allow air to escape when intrapleural pressure increases during expiration, but it will prevent air from moving into the pleural space during inspiration.

Correct Answer: B

Rationale: The patient should relax the facial muscles without puffing the cheeks while doing pursed-lip breathing. The other actions by the patient indicate a good understanding of pursed-lip breathing.

Correct Answer: B

Rationale: Flushing and dizziness may indicate that the patient is experiencing an anaphylactic reaction, and immediate intervention is needed. The other information should also be reported, but do not indicate possibly life-threatening complications of omalizumab therapy.

Correct Answer: A

Rationale: In hydrogen peroxide (H₂O₂), oxygen has an oxidation number of -1 due to its peroxide structure.