Now I have the full context of the question paper from the images. Let me answer all 20 MCQs directly from my medical knowledge, covering both modern medicine and Ayurvedic (Shalyatantra) content.

i. Primary mode of transmission for Hepatitis C? (a) Blood-to-blood ✅ Hepatitis C is primarily transmitted through blood-to-blood contact (IV drug use, contaminated needles, blood transfusions). Fecal-oral is for Hep A/E; airborne is not a route; vector-borne is not applicable.

ii. Which tendon is most commonly injured in Rotator cuff tears? (c) Supraspinatus ✅ The supraspinatus is the most commonly torn rotator cuff tendon, as it passes through a narrow subacromial space and is subjected to impingement. It accounts for ~95% of rotator cuff tears.

iii. Finkelstein's test is diagnostic of: (b) De Quervain's disease ✅ Finkelstein's test (ulnar deviation of wrist with thumb in fist) stretches the APL and EPB tendons and reproduces pain in De Quervain's tenosynovitis.

iv. According to Vagbhata, number of Kshudra rogas: (b) 44 ✅ Vagbhata (Ashtanga Hridayam) describes 44 Kshudra rogas. (Sushruta gives 44 also; Charaka lists 44 as well - this is the standard count attributed to Vagbhata.)

v. Which virus is associated with AIDS pandemic? (d) HIV-1 ✅ HIV-1 is responsible for the global AIDS pandemic. HIV-2 is largely confined to West Africa and is less virulent. HTLV-1 causes T-cell leukemia. HIV-3 does not exist as a recognized classification.

vi. McMurray's test is diagnostic of: (a) Meniscal injury ✅ McMurray's test (rotation + valgus/varus stress on a flexed knee) produces a click or pain in meniscal tears.

vii. Gophana bandha is used in the management of: (d) Guda bhramsha ✅ Gophana bandha (sling bandage) is specifically indicated for Guda bhramsha (rectal prolapse) in Ayurvedic surgery. It holds and supports the prolapsed rectum.

viii. "Sastrena utkrithya snehena daheth" is the treatment principle mentioned in chikitsa of: (a) Arbuda ✅ This Sushrutokta chikitsa principle - "cut with knife and then cauterize with fat/oil" - is the treatment principle described for Arbuda (tumour/neoplasm). It involves surgical excision followed by oleation-based cauterization.

ix. What is the primary concern in case of Hyponatremia? (c) Cerebral oedema ✅ Hyponatremia causes water to shift into brain cells due to osmotic gradient, leading to cerebral oedema. This is the primary life-threatening complication, causing raised intracranial pressure, herniation, and death. (Seizures are a symptom OF cerebral oedema, not the primary concern per se.)

x. Number of Shalyagati: (b) 3 ✅ Sushruta describes 3 types of Shalyagati (directions/positions of foreign body): Anuloma (in direction of entry), Pratiloma (against direction), and Tiryak (sideways/transverse).

xi. Lisfranc amputation is done in: (d) Foot ✅ Lisfranc amputation is a tarsometatarsal disarticulation - an amputation at the level of the tarsometatarsal joint in the foot.

xii. Recommended calorie intake for a malnourished and critically ill patient: (b) 25-30 kcal/kg/day ✅ Current guidelines (ESPEN, ASPEN) recommend 25-30 kcal/kg/day for critically ill/malnourished patients. Overfeeding (>30 kcal/kg) can worsen outcomes. Some guidelines use permissive underfeeding (15-20 kcal/kg) in early critical illness, but the standard recommended target is 25-30 kcal/kg/day.

xiii. What is the expected compensation for a patient with respiratory alkalosis? (c) Decreased renal bicarbonate reabsorption ✅ In respiratory alkalosis (low CO2, high pH), the kidneys compensate by excreting bicarbonate - i.e., decreasing HCO3 reabsorption - to normalize the pH. This is the metabolic compensation.

xiv. What is the first line treatment for anaphylaxis? (c) Adrenaline ✅ Intramuscular adrenaline (epinephrine) is the absolute first-line treatment for anaphylaxis. Antihistamines and corticosteroids are adjuncts only.

xv. Primary mechanism of beta-lactam antibiotics (e.g., penicillin): (b) Inhibiting cell wall synthesis ✅ Beta-lactams bind to penicillin-binding proteins (PBPs) and inhibit the cross-linking of peptidoglycan, thereby inhibiting bacterial cell wall synthesis.

xvi. Partial pressure of Carbon dioxide (normal arterial): (b) 35-45 mmHg ✅ Normal arterial PaCO2 is 35-45 mmHg. Values below 35 = respiratory alkalosis; above 45 = respiratory acidosis.

xvii. Metabolic Acidosis includes: (c) Low pH & low HCO3 ✅ Metabolic acidosis = low pH (acidosis) + low bicarbonate (primary loss of HCO3 or addition of acid). The body compensates with hyperventilation (low PCO2), but the defining feature is low pH and low HCO3.

xviii. Proton spin, Precession, T1, T2 relaxation are key concepts used in: (b) MRI ✅ These are fundamental principles of Magnetic Resonance Imaging. T1 and T2 relaxation times, proton spin, and Larmor precession are the physics underlying MRI image formation.

xix. In which skin biopsy, entire lesion along with some surrounding tissues are collected? (c) Excisional biopsy ✅ Excisional biopsy removes the entire lesion plus a margin of normal surrounding tissue. Incisional biopsy takes only a part; punch biopsy takes a core; shave biopsy is superficial.

xx. Common site of ganglion is: (b) Wrist ✅ Ganglionic cysts most commonly occur on the dorsum of the wrist (60-70% of all ganglia), arising from the scapholunate ligament or joint capsule.