| Download the amazing global Makindo app: ✅ Means NICE/National Guidelines 2026 compliant Android | Apple | |
|---|---|
| MEDICAL DISCLAIMER: Educational use only. Not for diagnosis or management. See below for full disclaimer. |
Blood cultures — avoid contaminated samples ⚠️ 🧪
Blood cultures — avoid contaminated samples ⚠️ 🧪
Cultures can identify a bloodstream pathogen, but skin contamination leads to false positive results, inappropriate antimicrobials and longer hospital stays.
🔎 Recognise
Take cultures when clinically indicated, including serious suspected bacterial infection; interpret their timing alongside antibiotics and the likelihood of bacteraemia.
🛟 First actions
Use aseptic non-touch collection, correct skin antisepsis and properly labelled separate sets according to local phlebotomy policy. In high-risk sepsis, collect before antibiotics only if that does not delay time-critical therapy.
🧪 Investigations and reassessment
Document exact sampling site and time and whether antibiotics preceded collection. Review culture positivity with microbiology, including organism, number of positive sets and clinical context.
⚠️ Common pitfalls and escalation
Do not label a result a contaminant merely because it is a common skin organism, especially with intravascular lines, prosthetic valves or immunosuppression.
UK reference: NICE NG253 sepsis management. Focused editorial source check, 7 November 2026; this is not independent clinical or pharmacy sign-off. Verify current local policy, BNF/BNFC and specialist advice before treatment. Not a prescribing protocol.
Related guides: Suspected sepsis in adults — FY quick guide 🚨 🦠 · Infective endocarditis suspicion ⚠️ 🏥
| The content on this website is provided for educational and informational purposes only to support exam preparation (e.g., MLA, MRCP, USMLE) and learning. This is NOT medical advice, diagnosis, treatment, or professional guidance. It does not replace consultation with a qualified healthcare professional, official guidelines (e.g., NICE, GMC, BNF), or supervised clinical practice. Always verify information with current, authoritative sources. Makindo and its contributors accept no liability for any reliance on this content, including errors, omissions, or any resulting harm, loss, or consequences. By using this site, you agree to these terms. |
|
|
Categories
- Acute Medicine
- Anaesthetics and Critical Care
- Cardiology
- Collections
- Dermatology
- Differentials
- Drugs
- Electrocardiogram
- Emergency Medicine
- Endocrinology
- ENT
- Foundation Doctors
- Gastroenterology
- General Practice
- Genetics
- Geriatric Medicine
- Gynaecology
- Haematology
- Hepatology
- Immunology
- Infectious Diseases
- Investigations
- Mental Health
- Microbiology
- Nephrology
- Neurology
- Neurosurgery
- Obstetrics
- Oncology
- Ophthalmology
- Oral Medicine and Dentistry
- OSCE
- Paediatrics
- Palliative
- Pharmacology
- Physiology
- Procedures
- Psychiatry
- Public Health
- Radiology
- Respiratory
- Resuscitation
- Revision Topics
- Rheumatology
- Stroke
- Surgery
- Toxicology
- Trauma and Orthopaedics
- Urology
- Vascular Surgery