If you’re a nursing student studying pharmacology or preparing for the NCLEX, it’s important to know the carbapenem class of antibiotics. Let’s do a quick review.
Carbapenem Antibiotic Basics
Carbapenems share the common suffix “-penem.” Examples include:
- Imipenem
- Meropenem
These antibiotics are considered some of the broadest-spectrum agents available.
What Do Carbapenems Target?
Carbapenems are very powerful antibiotics with wide coverage. They target:
- Gram-positive bacteria
- Gram-negative bacteria
- Anaerobes
- ESBL (Extended-Spectrum Beta-Lactamase) producing bacteria
Because of this, carbapenems are reserved for serious, resistant infections. They are the “go-to” when everything else has failed and is essentially a final line of defense.
Review on Carbapenems
Mechanism of Action of Carbapenems
Carbapenems work by inhibiting bacterial cell wall synthesis, producing a bactericidal effect (they kill bacteria rather than just stopping growth).
Carbapenem Nursing Mnemonic: FINAL
Since carbapenems are considered a final-line antibiotic, remember the word FINAL to review their key nursing considerations:
F – Final option for resistant infections
- Used only when other antibiotics fail.
- Avoid overuse to prevent further resistance.
I – IV or IM route only
- No oral formulations available.
- Patients are usually very sick and hospitalized when receiving these medications.
N – Neuro risk
- Especially with imipenem, there is a risk for seizures.
- Always assess seizure history and monitor neurological status.
A – Allergy potential
- Carbapenems share a beta-lactam structure, so there is a possible cross-reaction with penicillins and cephalosporins.
- Always assess for allergies before giving.
L – Labs for kidney function
- Monitor creatinine, BUN, and I&O.
- Renal monitoring is critical because many antibiotics, including carbapenems, impact kidney function.
Remember: Carbapenems are final-line, broad-spectrum antibiotics used only in severe, resistant infections. For exams and clinical practice, remember FINAL: Final option, IV/IM only, Neuro risk, Allergy risk, Labs for kidneys.
You may be interested in: Carbapenem NCLEX-Style Practice Questions
References:
Kizior, R. J., & Hodgson, K. (2023). Saunders nursing drug handbook (12th ed., p. 745). Elsevier. ISBN 9780323930765
U.S. Food and Drug Administration. (2014, December). MERREM® I.V. (meropenem for injection) prescribing information [PDF]. U.S. Department of Health and Human Services. Retrieved from https://www.accessdata.fda.gov/drugsatfda_docs/label/2014/050706s035lbl.pdf