The admistration of succinylcholine to a paraplegic patient led to appearance of dysarrythimas, conduction abnormalities band finally cardiac arrest. The most likely cause is: (A) Hypercalcemia, (B) Hyperkalemia, (C) Anaphylaxis, (D) Hypermagnesmia
Answer is B. Refer Katzung 11/e p460 Succinylcholine can cause Hyperkalemia especially in patients with nerve and muscle disorders. Therefore it is contra indicated in patients with nerve diseases and muscle diseases