MCQs Week 12 Loading... 1. 15ml is drawn up from a vial of 0.5% prilocaine in preparation for a biers block. What dose is this? 15mg30mg50mg75mg Loading... 2. Regarding N Meningitides, which of the following is FALSE? The majority of cases are caused by one of five serotypesApproximately 10% of the population is colonised at any timeThe death rate of N Meningitides infection if appropriately treated with antibiotics is <5%N Meningitides is a common coloniser of the oropharynx and is spread by the respiratory route Loading... 3. Increasing alveolar ventilation increases the blood pH by Activating neural mechanisms to remove acid from the bloodMaking Hb a stronger acidIncreasing the pCO2 of the bloodIncreasing the HCO3/PCO2 ratio of the blood Loading... 4. Which of the the following anaesthetic drugs is an ester? TetracaineBupivacaineLignocainePrilocaine Loading... 5. The half life of lignocaine is 1 minute10 minutes20 minutes90 minutes Loading... 6. The obturator nerve supplies Adductor magnusObturator internusQuadratus femorisSartorius Loading... 7. Which of the following is the principal buffer in interstitial fluid? HbProteinsCarbonic acidH2PO4 Loading... 8. Which of the following is correct regarding subarachnoid haemorrhage? Vascular malformation rupture is the most frequent cause40% of saccular aneurysms are found in the anterior circulationSmoking is a predisposing factor in the development of saccular aneurysmsIn 5-10% of cases, multiple aneurysms are present Loading... 9. Local anaesthetics Preferentially block unmyelinated nerve fibresHave more marked block in low frequency depolarising neuronesType A alpha fibres are blocked earlier than type A delta fibresType C pain fibres are more sensitive to blockade than type A delta pain fibres Loading... 10. Regarding CNS infections Viral agents usually cause elevation of CSF glucoseThey do not result from axonal transport from the peripheral nervous systemMost commonly occur via haematogenous spreadAre not a common feature of AIDs Loading... 11. The most common site of a hypertensive intracerebral haemorrhage is PonsCerebellumPutamenThalamus Loading... 12. In the lateral compartment of the leg The muscles are supplied by the deep fibular nerveThe fibularis longus muscle arises from the fibula head and lateral condyle of the tibiaThe fibular muscle tendons are bound at the lateral malleolus by the inferior peroneal retinaculumThe fibular muscle tendons share a common synovial sheath at the lateral malleolus Loading... 13. In the upper part of the popliteal fossa the following structures are ordered from medial to lateral Popliteal artery, popliteal vein, sciatic nervePopliteal vein, popliteal artery, sciatic nerveSciatic nerve, popliteal artery, popliteal veinSciatic nerve, popliteal vein, popliteal artery Loading... 14. The popliteal artery Is superficial to the tibial nerveExtends from the hiatus in adductor longusEnters the popliteal fossa on the lateral aspect of the femurSupplies the cruciate ligaments Loading...
