Subarachnoid block for caesarean section is an acceptable and safe anaesthetic procedure. Cases of high spinal are encountered from time to time; especially in patients that are at risk; pregnancy itself being a risk factor. Efforts at minimizing the unpredictable spread of local anaesthetic agents informs the choice of hyperbaric bupivacaine over hypobaric or isobaric bupivacaine. Following a critical incident in a patient that had plain 0.5%bupivaine, subsequently 0.5% hyperbaric bupivacaine was constituted from plain isobaric bupivacaine in an at-risk patient without any sequelae. Drug availability and potency is a recurring challenge in patients presenting for emergency caesarean section; in whom subarachnoid block is a better and safer option in low resource environments.