pseudocholinesterase deficiency testbutyrylcholinesterase deficiencycholinesterase deficiencyvitamin or mineral deficiencyb12 or folate deficiencycholinesterase deficiency anesthesiairon or zinc deficiencyvitamin b12 or folate deficiencyplasma cholinesterase deficiencypseudocholinesterase enzymeserum cholinesterase deficiencythiamine deficiency