Free Local Anaesthetics practice for NEET PG and INI-CET Anaesthesia, with a written explanation on every question.
5 questions · Free explanations
Showing 1–5 of 5 questions
Q1 · Mechanism of Action
NEET PGMediumExplanation
Local anaesthetics reversibly block voltage-gated sodium channels in nerve membranes, preventing depolarisation and impulse conduction. Smaller, myelinated pain fibres are blocked before larger motor fibres.
Q2 · Adrenaline with Local Anaesthetic
NEET PGMediumExplanation
Adrenaline causes local vasoconstriction, which prolongs the anaesthetic's duration, reduces systemic absorption and toxicity, and lessens bleeding. It is avoided at end-artery sites — fingers, toes, penis, nose, and ears — where it could cause ischaemia.
Q3 · Local Anaesthetic Systemic Toxicity
NEET PGHardExplanation
Local anaesthetic systemic toxicity begins with perioral numbness and tingling, tinnitus, a metallic taste, and light-headedness, and can progress to seizures, arrhythmias, and cardiovascular collapse. Treatment includes stopping the injection, supportive care, and intravenous lipid emulsion.
Q4 · Lipid Emulsion Rescue
HardExplanation
Intravenous 20% lipid emulsion, 'intralipid', is the specific antidote for severe local anaesthetic systemic toxicity, thought to act as a 'lipid sink' that sequesters the lipophilic anaesthetic. It is given alongside standard resuscitation.
Q5 · Maximum Safe Dose
MediumExplanation
Local anaesthetic toxicity is dose-related, so the maximum safe dose is calculated per kilogram of body weight — lignocaine roughly 3 mg/kg plain, more with adrenaline — to avoid systemic toxicity. Weight-based dosing is especially important in children.
Local Anaesthetics sits within Anaesthesia, which carries the same syllabus in both exams. This set runs to 5 questions, each tagged Easy, Medium or Hard, 2 of them at Hard, and 3 drawn from previous-year papers.
Answer first, then read the explanation even on the ones you got right — the reasoning is where Local Anaesthetics marks are actually won, and it is what separates a recalled fact from a question you can solve in a new form. Once the Easy set feels comfortable, filter to Hard to find the gaps Anaesthesia examiners keep returning to.
FAQ
Yes. Every question and explanation in this Local Anaesthetics set is free and open — no login, no form and no payment. The explanation appears the moment you answer.
Local Anaesthetics sits within Anaesthesia, which appears in the same form in both syllabuses. Airway, anaesthetic drugs and peri-operative care, one of the most repetitive small subjects in the paper.
No. No account, no password, no OTP. Answer in the browser and your answers stay on your device for the session.