Final answer:
The maximum safe dose of amikacin every 12 hours cannot be determined without further specific dosing information from the drug literature, such as mg/kg recommendations or a maximum daily limit.
Step-by-step explanation:
To determine the maximum safe dose of amikacin that the patient can receive every 12 hours, we need additional information that isn't provided in the question such as the recommended dosage range for amikacin based on the patient's condition and weight (mg/kg), or a maximum daily limit. Without this specific information from the drug literature or drug reference guide, we can't calculate an accurate dose. In general, dosing for medications like amikacin is critical as it must balance efficacy against the risk of side effects and toxicity. It is especially important for drugs with serious side effects and those that are dosed based on patient body weight.