**Question:** Carbapenem with maximum seizure risk is

A. Imipenem
B. Meropenem
C. Daptomycin
D. Ceftaroline

**Core Concept:**
Carbapenems are a class of broad-spectrum beta-lactam antibiotics, which are effective against Gram-negative and Gram-positive bacteria. They possess a broad spectrum of activity and are considered as last-resort drugs for treating severe infections. However, carbapenems can cause seizures due to their pharmacokinetic properties.

**Why the Correct Answer is Right:**
Among the given options, Imipenem (option A) is known to have a higher risk of causing seizures compared to other carbapenems. This is primarily due to its high brain penetration, which allows it to reach high concentrations in the central nervous system (CNS). The high concentration of Imipenem in the CNS can lead to the inhibition of gamma-aminobutyric acid (GABA) receptors, causing seizures.

**Why Each Wrong Option is Incorrect:**
- Meropenem (option B) and Daptomycin (option D) have lower concentrations in the CNS compared to Imipenem, reducing their risk of causing seizures.
- Ceftaroline (option C) is a cephalosporin antibiotic and does not share the same pharmacokinetic properties as Imipenem, making it less likely to cause seizures.

**Clinical Pearl:**
The maximum risk of carbapenem-induced seizures is associated with Imipenem. To minimize the risk, the clinician should consider alternative carbapenem options like Meropenem or Daptomycin when treating patients at risk for seizures or those with pre-existing neurological conditions.

**Correct Answer:** Imipenem