An example of monoclonal antibiotic?

Appeared in: JIPMER Nursing Officer - 2020

Explanation

The term 'monoclonal antibiotic' is a misnomer; the question almost certainly means 'monoclonal antibody'.
Rituximab is a monoclonal antibody, a class of biologic drugs that specifically target certain cells or proteins.
The suffix '-mab' in a drug's generic name, as in Rituximab, is the standard nomenclature for a Monoclonal Antibody.
It works by targeting the CD20 antigen on B cells, leading to cell lysis, and is used in the treatment of specific cancers and autoimmune disorders.

Option A: Rifaximin is an antibiotic, but it is a small-molecule drug of the rifamycin class, not a large protein-based monoclonal antibody.
Option C: Indinavir is an antiviral medication, specifically a protease inhibitor, used in the management of HIV/AIDS. It belongs to a completely different pharmacological class.
Option D: Zidovudine (also known as AZT) is an antiviral medication. It is a nucleoside reverse transcriptase inhibitor (NRTI) used to treat HIV/AIDS.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pharmacological classification of drugs, specifically monoclonal antibodies as background academic context rather than a clinical decision trigger.
Nurses must recognize drug classes to ensure patient safety. Confusing a biologic agent like Rituximab with a standard antibiotic could lead to serious administration errors, as biologics often have specific infusion protocols and a high risk of infusion reactions.
Recognizing drug name suffixes (e.g., -mab, -cillin, -vir) is a key skill for nurses to quickly identify a drug's class and anticipate its general mechanism and potential side effects.
What if the patient had an active, severe infection? Administering Rituximab would be contraindicated as it is an immunosuppressive agent that can worsen infections. This highlights the critical need to differentiate between anti-infectives and immunomodulators.

How to Approach the Question

First, analyze the question's key term: 'monoclonal antibiotic'.
Recognize that this term is unusual and likely a typo for a standard drug class, 'monoclonal antibody', which you may have studied.
Scan the options for clues. The suffix '-mab' is a standard nomenclature for monoclonal antibodies.
Identify 'Rituximab' as the only option with the '-mab' suffix, making it the most plausible answer.
Confirm your choice by recalling or deducing the classes of the other drugs (Rifaximin is an antibiotic; Indinavir and Zidovudine are antivirals) to definitively rule them out.

Concept Tested & Keywords

Concept Tested: Pharmacological classification of drugs, specifically monoclonal antibodies.
Stem keywords: monoclonal antibiotic
Lead-in keywords: An example of
Negative lead-in flag: false

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E6 Pharmacology Nursing Lilley 11e Part 3 pp. 119-121, 121-123, 122-124

Practise the full JIPMER Nursing Officer - 2020

Attempt every question from this paper in a timed mock, then review the full solution for each one.