Bell's palsy is due to the injuries of which cranial nerve :

Correct Answer: C

Rationale: Bell's palsy causes unilateral facial weakness due to cranial nerve dysfunction. The trigeminal nerve (choice A, CN V) controls sensation and chewing, not facial movement. The trochlear nerve (choice B, CN IV) moves the eye, irrelevant here. The facial nerve (choice C, CN VII) innervates facial muscles; its injury (often idiopathic or viral) leads to Bell's palsy, with symptoms like drooping mouth or eye. The hypoglossal nerve (choice D, CN XII) moves the tongue. C is correct, as facial nerve damage is the established cause. Nurses assess symmetry, support eye care (due to incomplete closure), and educate on recovery, typically spontaneous within months.

Correct Answer: C

Rationale: In anaphylaxis, a severe allergic reaction, eosinophils (C) proliferate due to their role in combating allergens and parasites via histamine release and inflammation modulation. Neutrophils (A) focus on bacterial infections, not allergies. Basophils (B) release histamine too, but their numbers don't surge as eosinophils do in allergic states; they initiate the response. Monocytes (D) handle chronic inflammation, not acute hypersensitivity. Eosinophils rise in blood and tissues during anaphylaxis, reflecting their specialization in allergic conditions, making C the correct answer based on immunological specificity.

Correct Answer: B

Rationale: Elton's moderate anxiety (B) is shown by profuse sweating, reduced environmental awareness, and selective focus on the exam. Mild (A) boosts alertness without distress. Severe (C) severely impairs function, while panic (D) causes disorganization, unlike Elton's controlled focus. Moderate anxiety narrows perception but aids task concentration, fitting his test-taking state per anxiety levels, making B correct.

Correct Answer: B

Rationale: A crisis characteristic is a triggering event (B), a sudden disruption (e.g., loss), per Caplan. It's time-limited (not A), dangerous (not C), and involves the whole person (not D). B's trigger is core to crisis definition, making it correct.

Correct Answer: B

Rationale: Od' means right eye (B), from Latin 'oculus dexter,' per ophthalmic terms. Left eye (A) is 'os,' both eyes (C) 'ou,' once a day (D) 'qd.' B aligns with Maxitrol's eye-specific use, making it correct.