Which of the following is a systemic complication of local anaesthesia?

Correct Answer: C

Rationale: Local anesthesia complications can be local or systemic. 'Hypotension,' is correct as a systemic effect, often from overdose or rapid absorption (e.g., lidocaine toxicity), per anesthesiology texts (e.g., Morgan & Mikhail). 'Pain,' and 'Edema,' are local, site-specific reactions. 'Nerve damage,' is local, not systemic, unless widespread. Hypotension reflects systemic circulation impact, distinguishing C as the accurate answer, rooted in clinical observations of local anesthetic systemic toxicity (LAST).

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: B

Rationale: The systemic circuit runs from the aorta to tissues, returning via venae cavae. 'Systemic,' is correct, per physiology (e.g., Tortora). 'Pulmonary,' is heart-to-lungs. 'Circulus arteriosus,' is incorrect (likely Circle of Willis). Choice D is wrong as only systemic fits. B's accuracy makes it the answer.

Correct Answer: C

Rationale: Glucagon, which raises blood glucose by promoting glycogenolysis, is secreted by the pancreas' alpha cells. 'Pancreas,' is correct, per physiology texts like Vander's Human Physiology. 'Adrenal gland,' secretes catecholamines and cortisol, not glucagon. 'Thyroid gland,' produces T3/T4 for metabolism. 'Pituitary gland,' regulates other glands, not glucose directly. The pancreas' endocrine role in glucose homeostasis, via glucagon, distinguishes C as the accurate answer, specific to its islet cells.

Correct Answer: B

Rationale: The vulva encompasses all external female genitalia, including labia, clitoris, and vaginal opening. 'Vulva,' is correct, per gynecological anatomy (e.g., Gray's Anatomy). 'Vagina,' is internal. 'Clitoris,' and 'Labia,' are vulval parts, not the whole. Vulva's comprehensive term distinguishes B as the precise answer, anatomically accurate.