Pharmacology HESI Practice Exam

Pharmacology HESI Practice Exam The health care provider prescribes carbamazepine for a child whose tonic-clonic seizures have been poorly controlled. The nurse informs the mother that the child must have blood tests every week. The mother asks why so many blood tests are necessary. Which complication is assessed through frequent laboratory testing that the nurse should explain to this mother? Myelosuppression Rationale: Myelosuppression is the highest priority complication that can potentially affect clients managed with carbamazepine therapy. The client requires close monitoring for this condition by weekly laboratory testing. Hepatic function may be altered, but this complication does not have as great a potential for occurrence as Myelosupression A client is prescribed a cholinesterase inhibitor, and a family member asks the nurse how this medication works. Which pharmacophysiologic explanation should the nurse use to describe this class of drug? Improves nerve impulse transmission Rationale: Cholinesterase inhibitors work to increase the availability of acetylcholine at cholinergic synapses, which aids in neuronal transmission and assists in memory formation. A client is ordered 22 mg of gentamicin by IM injection. The drug is available in 20 mg/2 mL. How many milliliters should be administered? 2.2 mL Rationale: (22 mg/20 mg) × (x mL/2 mL) = 22x = 40 x = 2.2 mL