Filter Needle Use: Single-Use Only for Safety and Accuracy

Filter needles are single-use devices. Discard after each use.

Why Not Reuse?

• Contamination risk: Residual medication, particulates, microbes
• Filter integrity: Membrane degrades/clogs; pore size changes → inconsistent filtration
• Cross-contamination: Between drugs, patients, or samples
• Accuracy: Altered flow dynamics affect dose precision
• Regulatory: FDA-cleared as single-use; reuse violates labeling

Clinical Context

• Used when drawing from glass ampules (filter glass particles)
• Required for certain hazardous drugs (NIOSH list)
• Attach to syringe; aspirate; remove filter needle; administer via separate needle

Always use a new, sterile filter needle for each filtration step. Cost is negligible vs. patient safety.