Related Experiment Video
Updated: Apr 11, 2026

12:18
Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus MRSA
Published on: February 9, 2011
23.8K
Does this child really have a penicillin allergy?
Irish Medical Journal
|May 29, 2015
Summary
A new nurse-led protocol safely evaluated children with suspected penicillin allergy. Most children (95%) had negative challenges, allowing future penicillin prescriptions.
Area of Science:
- Pediatric Allergy and Immunology
- Clinical Pharmacology
- Nursing Practice
Background:
- Penicillins are frequently prescribed in pediatrics and commonly reported as a cause of drug allergy.
- Accurate diagnosis of penicillin allergy is crucial but often hindered by the infrequent performance of oral penicillin challenges.
- Lack of trained staff and facilities limits the widespread use of gold-standard allergy testing.
Purpose of the Study:
- To introduce and evaluate a standardized, nurse-led protocol for assessing low-risk children with suspected penicillin allergy.
- To determine the safety and efficiency of this protocol in a clinical setting.
- To facilitate accurate diagnosis and appropriate antibiotic prescribing for pediatric patients.
Main Methods:
- A standardized nurse-led protocol was implemented to evaluate children meeting low-risk criteria for suspected penicillin allergy.
- Oral penicillin challenges were administered to participants under the new protocol.
- Data on challenge outcomes and patient safety were collected and analyzed.
Main Results:
- 38 children met study criteria, with 36 (95%) completing negative penicillin challenges.
- Only 2 (5%) participants experienced positive challenges, exhibiting reactions similar to their initial reported event.
- The protocol demonstrated efficiency in evaluating a significant number of children.
Conclusions:
- The standardized nurse-led protocol is a safe and efficient method for evaluating low-risk children with suspected penicillin allergy.
- Negative challenges enable the safe future prescription of oral penicillin for these children.
- This approach can help reduce unnecessary avoidance of beta-lactam antibiotics and improve patient management.
Related Concept Videos
Allergic Reactions: Anaphylaxis
207
Anaphylaxis is a severe, life-threatening hypersensitivity reaction mediated by Immunoglobulin E (IgE) antibodies. When IgE binds to allergens, it triggers the release of mediators– histamine, leukotrienes, and prostaglandins from mast cells and basophils. These mediators cause vasodilation, edema, and inflammation, leading to various symptoms.The primary allergens causing anaphylaxis include food items (e.g., peanuts, shellfish), drugs (e.g., penicillin, asparaginase, corticotropin,...
207
Allergic Reactions
34.1K
Overview
34.1K
Production of Antibiotics
149
Penicillin, one of the earliest and most widely used antibiotics, is produced industrially by the filamentous fungus Penicillium chrysogenum. Large stirred-tank bioreactors ranging from tens to hundreds of thousands of liters maintain tightly controlled temperature, pH, and dissolved oxygen conditions to support fungal metabolism and maximize antibiotic yield. Penicillin is a secondary metabolite, synthesized primarily during the stationary growth phase, which requires a carefully managed...
149
Pharmacokinetics in Pediatric Patients: Drug Excretion
388
In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...
388
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption
821
Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...
821
Inhibitors of Gram-positive Cell Wall Synthesis
104
Bacterial cell walls are typically rigid structures composed mainly of peptidoglycan, a mesh-like polymer that provides mechanical strength and maintains cell shape. The synthesis of peptidoglycan is a crucial process in bacterial growth and serves as a primary target for many antibiotics.Mechanism of Action of Beta-Lactam AntibioticsBeta-lactam antibiotics, such as penicillin, inhibit peptidoglycan synthesis in actively growing cells. These antibiotics share a characteristic four-membered...
104

