Overview
A needlestick or sharps injury is a percutaneous exposure from a contaminated needle, blade, broken glass, or similar sharp during laboratory work. Prevention and institutional exposure pathways protect staff; medical regimens are handled by designated occupational health services.
Classification
| Layer | Action | Avoid |
|---|---|---|
| Engineering | Use safety-engineered sharps as supplied | Defeating safety features |
| Work practice | No recap; dispose immediately | Two-handed recap |
| PPE | Gloves + task barriers | Assuming gloves stop needles |
| Response | Wash, notify, follow exposure SOP | Silent continuation of work |
Morphologic Features
Not organism morphology. Describe the device (hollow-bore vs solid), depth of injury, and whether visible blood was involved, as required on institutional incident forms.
Laboratory Characteristics
- Sharps containers at point of use; never overfill
- No needles in biohazard bags or regular trash
- Posted exposure first-aid and contacts
- Preserve source specimen identity per SOP only
Reference Intervals
Not numeric. Exposure follow-up timelines and medical criteria are institutional occupational-health policies, verify locally. This profile does not list drug doses.
Clinical and Laboratory Significance
Prompt reporting enables timely medical evaluation. Delayed reporting and undocumented source material weaken the institutional response without changing the need to follow SOP.
Differential Considerations
Differentiate clean unused sharps injuries from contaminated blood/culture exposures; both still require institutional reporting rules as written. Mucous-membrane splashes follow related but separate exposure pathways.
Comparison Tables
Sharps event cues
| Event | Bench action | Outside bench scope |
|---|---|---|
| Needlestick | Wash, report, document | Choosing PEP regimen/dose |
| Near miss (no injury) | Report near-miss per QA/safety SOP | Ignoring because “no blood drawn” |
| Overfilled sharps box | Seal/replace per waste SOP | Stuffing past fill line |
Classification Frameworks
Not applicable.
Laboratory Notes
- Hedge BMBL and exposure algorithms as institutional adoptions
- No treatment or dosing language
- Prevention first; immediate report if injured
References
Authoritative textbooks, guidelines, and reviews supporting this reference entry. Verify reference intervals, critical limits, and reflex criteria against institutional protocols and current guideline editions.
Textbooks
- Forbes BA, Sahm DF, Weissfeld AS. Bailey & Scott's Diagnostic Microbiology. 15th ed. Elsevier; 2020.
- Mahon CR, Lehman DC, Manuselis G. Textbook of Diagnostic Microbiology. 6th ed. Elsevier; 2018.
- Carroll KC, Hobden JA, Miller S, et al. Jawetz, Melnick, & Adelberg's Medical Microbiology. 28th ed. McGraw-Hill; 2019.
- Murray PR, Rosenthal KS, Pfaller MA. Medical Microbiology. 9th ed. Elsevier; 2021.
CLSI and Professional Guidelines
- Centers for Disease Control and Prevention / NIH. Biosafety in Microbiological and Biomedical Laboratories (BMBL). Current edition (verify institutional adoption).
- Clinical and Laboratory Standards Institute. Performance Standards for Antimicrobial Susceptibility Testing. CLSI document M100 (verify current edition and institutional adoption).
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