Correct Answer: A

Rationale: Decreased blood pressure is the priority as it indicates anaphylaxis, a life-threatening allergic reaction. Stomach pain, urticaria, and lightheadedness are less immediately critical.

Correct Answer: A

Rationale: Applying pressure to the inner canthus prevents systemic absorption of the medication.

Correct Answer: A,D,E,F

Rationale:
Choice A: No hypersensitivity to allergens is correct because nonallergic asthma is not triggered by allergen exposure, unlike allergic asthma.
Choice D: Asthma flare-ups with NSAID administration is correct as NSAIDs like aspirin can trigger symptoms in some with nonallergic asthma.
Choice E: Persistence of manifestations is correct since nonallergic asthma symptoms are often persistent without a seasonal pattern.
Choice F: Positive response to corticosteroids is correct as corticosteroids are effective in managing nonallergic asthma.

Correct Answer: A

Rationale: Omeprazole, a proton pump inhibitor, reduces gastric acid to promote ulcer healing.

Correct Answer: B

Rationale: A pneumothorax causes lung collapse, impairing gas exchange and leading to lower oxygen saturations (93% to 94%). Higher saturations, lower energy expenditure, and increased lung capacity are not expected due to compromised lung function.