Safe Handling of Hazardous Drugs — Part 3: Spill Management, Waste Disposal, and Decontamination

9. Spill Management

Spills of hazardous drugs represent acute exposure events that require immediate, trained, and systematic response. Every facility that handles hazardous drugs must have written spill procedures, maintain spill kits in all areas where hazardous drugs are handled, and ensure that all personnel who might encounter a spill are trained in spill response.¹

9.1 Spill Kit Contents

Spill kits must be readily accessible in every area where hazardous drugs are stored, compounded, administered, transported, or disposed of. Kits should be commercially available, pre-assembled kits specifically designed for hazardous drug spills, or institution-assembled kits containing the following components:²

9.2 Spill Classification

9.3 Small Spill Response Procedure

Step-by-step protocol:

1. Alert: Notify nearby personnel of the spill. If the spill occurs in a patient care area, move the patient (if mobile and safe to do so) away from the spill
2. Restrict access: Place a warning sign or verbally restrict access to the spill area to prevent unprotected personnel from entering
3. Don PPE: Put on full spill PPE from the spill kit:
   • Double chemotherapy-tested gloves
   • Protective gown
   • Splash goggles or face shield
   • N95 respirator (fit-checked)
   • Shoe covers
4. Contain the spill:
   • For liquid spills: Place absorbent pads or sheets over the spill, working from the outer edges inward to prevent spreading. Allow the absorbent material to soak up the liquid
   • For powder or solid spills: Dampen the material with water or a wet absorbent pad before attempting to collect it — this prevents further aerosolization. Use a disposable scoop to gently collect the material. Do not sweep dry powder
   • For broken glass/vials: Use the disposable scoop — never pick up glass with gloved hands. Place glass fragments in the puncture-resistant container
5. Decontaminate the surface:
   • After removing the bulk of the spill, apply the decontamination solution (sodium hypochlorite 0.5% or equivalent) to the affected area
   • Allow adequate contact time (typically 30 minutes, or per manufacturer instructions for commercial decontamination agents)
   • Wipe the area with clean absorbent pads
   • Apply detergent/cleaning solution and wipe again
   • Rinse with water and dry
   • Repeat the decontamination-cleaning cycle three times for maximum assurance
6. Dispose of all materials: Place all contaminated materials (absorbent pads, gloves, gown, scoop, waste bags) in sealed HD waste bags, then into HD waste containers
7. Remove PPE: Doff in the correct sequence (see Part 2, Section 8.2); perform hand hygiene
8. Document: Complete the spill incident report including:
   • Drug name, estimated quantity, and formulation
   • Location and time of spill
   • Cause of spill (if known)
   • Names of personnel involved in cleanup
   • Names of any personnel exposed
   • PPE used during cleanup
   • Decontamination procedures performed
   • Corrective actions taken or recommended

9.4 Large Spill Response Procedure

Step-by-step protocol:

1. Alert and evacuate: Immediately notify all personnel in the area. Evacuate non-essential personnel from the spill area. Close doors to contain potential airborne contamination
2. Restrict access: Post warning signs and barrier tape to prevent entry by unprotected persons
3. Notify designated spill response personnel: Contact the pharmacy, safety officer, environmental services, or other designated spill response team as defined by institutional policy
4. Ventilation: If the spill involves a volatile agent or generates visible aerosol or dust:
   • Turn off recirculating fans or HVAC returns in the immediate area if possible to prevent spreading contamination through the ventilation system
   • Open windows to the outside (if applicable and if this creates outward airflow)
   • If the spill occurs in a negative-pressure room, the room’s exhaust system will help contain airborne contamination — keep the door closed
5. Don enhanced PPE: The trained spill response team must don:
   • Double chemotherapy-tested gloves
   • Protective gown (or chemotherapy-rated coverall for very large spills)
   • Face shield
   • PAPR with organic vapor/P100 cartridges, or chemical cartridge full-face respirator (N95 is the minimum if PAPR is unavailable)
   • Shoe covers (impervious boot covers for large floor spills)
6. Contain the spill: Use spill containment pillows or booms to prevent further spread. Then follow the absorption, collection, and decontamination steps outlined for small spills, scaling up materials as needed
7. Decontaminate:
   • Perform at least three cycles of decontamination-cleaning-rinse on all affected surfaces
   • For carpet contamination: the contaminated section of carpet should be removed and discarded as HD waste if decontamination cannot be assured
   • For upholstered furniture: if contamination cannot be removed by surface cleaning, the item should be discarded as HD waste
8. Post-cleanup verification: Some institutions perform surface wipe sampling after large spill cleanup to verify adequate decontamination. While not universally required, this is a best practice for quality assurance
9. Dispose and document: Per small spill protocol, with additional notation of the scale of the event, evacuation actions taken, and any facility damage

9.5 Spills on Personnel

If a hazardous drug comes into direct contact with a worker’s skin, eyes, or mucous membranes:

Skin exposure:

1. Immediately remove contaminated clothing
2. Wash the affected skin area with soap and water for at least 15 minutes (do not use abrasive scrubs or hot water, which may increase absorption)
3. Do not use chemical neutralizing agents on skin
4. Seek medical evaluation — report to occupational health or the emergency department
5. Document the exposure

Eye exposure:

1. Immediately flush the affected eye(s) with water or isotonic saline for at least 15 minutes using an emergency eyewash station
2. Hold eyelids open during flushing to ensure thorough irrigation
3. Remove contact lenses as soon as possible (if present) during flushing
4. Seek immediate medical evaluation — ophthalmology consultation if significant exposure
5. Document the exposure

Inhalation exposure:

1. Immediately move to fresh air; leave the contaminated area
2. If respiratory distress, administer supplemental oxygen and seek emergency medical care
3. Report to occupational health for evaluation
4. Document the exposure

Needlestick or sharps exposure with HD contamination:

1. Allow the wound to bleed freely briefly; wash with soap and water
2. Do not squeeze the wound aggressively
3. Seek immediate medical evaluation
4. Identify the specific drug(s) involved and provide this information to the evaluating clinician
5. Follow institutional bloodborne pathogen exposure protocols in addition to HD-specific protocols
6. Document the exposure

9.6 Spill Kits — Placement Requirements

10. Waste Disposal

10.1 Hazardous Drug Waste Categories

Hazardous drug waste is categorized into two types based on the amount of residual drug present. This distinction has regulatory and disposal implications.³

Trace Contamination Waste

Materials that have contacted hazardous drugs but do not contain visible or significant quantities of drug residue:

• Empty HD vials (with residual drug only in amounts that cannot be removed by common practices)
• Used gloves, gowns, shoe covers, hair covers, and other PPE
• Absorbent pads from BSC work surfaces
• Empty IV bags and tubing (with only trace residual drug remaining after administration)
• Needles and syringes used for HD administration (after drug has been administered)
• Patient care items contaminated with body fluids during the HD excretion period (diapers, linen protectors, etc.)

Trace contamination waste is classified as hazardous drug waste and must be:

• Segregated from regular medical waste and from non-HD pharmaceutical waste
• Placed in designated, clearly labeled HD waste containers (typically yellow containers with “Chemotherapy Waste” or “Hazardous Drug Waste” labeling)
• Disposed of through incineration at a permitted facility (the preferred method) or through other methods approved by the applicable environmental agency
• Sharps contaminated with HD residue must go into designated HD sharps containers, separate from regular sharps

Bulk Hazardous Drug Waste

Materials containing significant quantities of hazardous drug — including:

• Partially used vials, ampoules, or syringes with more than trace residual drug
• Unused or expired hazardous drugs
• Compounded preparations that are not administered
• IV bags or bottles returned with significant drug remaining
• Spill cleanup materials containing bulk drug

Bulk hazardous drug waste may be classified as RCRA hazardous waste (Resource Conservation and Recovery Act) if the specific drug appears on the EPA’s P-list or U-list of hazardous wastes, or if it exhibits a characteristic of hazardous waste (ignitability, corrosivity, reactivity, or toxicity per TCLP). Key examples of RCRA-listed hazardous drugs:

RCRA-listed hazardous drug waste must be:

• Segregated into appropriate black RCRA hazardous waste containers
• Managed per RCRA hazardous waste generator requirements (satellite accumulation rules, 90-day/180-day storage limits, manifesting, and disposal at permitted Treatment, Storage, and Disposal Facilities)
• Never placed in regular HD (trace) waste containers or regular medical waste

Non-RCRA hazardous drug waste in bulk quantities should still be managed as hazardous drug waste and disposed of through incineration or other approved methods, though the regulatory framework may be less stringent than for RCRA waste.

10.2 Waste Container Specifications

10.3 Waste Handling Procedures

1. Segregation at point of generation: All HD waste must be placed in the correct container immediately at the point where it is generated — do not carry HD waste to distant locations or mix with other waste streams
2. PPE for waste handling: Personnel handling HD waste containers must wear at minimum double chemotherapy-tested gloves and a protective gown
3. Container management:
   • Do not overfill waste containers — close and replace when approximately three-quarters full
   • Ensure container lids are secured when not actively depositing waste
   • Inspect containers regularly for leaks or damage
   • Keep waste containers in well-ventilated areas
4. Transport within facility: HD waste containers must be transported in a manner that prevents tipping, breakage, or leakage (use wheeled carts with containment)
5. Storage pending disposal: HD waste must be stored in designated, secure, well-ventilated areas pending pickup by the waste disposal vendor; comply with applicable storage time limits (RCRA: 90 days for large-quantity generators, 180 days for small-quantity generators)
6. Documentation: Maintain waste manifests and disposal records per RCRA requirements (for RCRA waste) and per institutional policy (for non-RCRA HD waste)

10.4 Prohibited Disposal Practices

The following practices are prohibited:

• Flushing hazardous drugs down the drain or toilet (unless the specific drug’s SDS and local regulations permit this, which is rare)
• Disposing of HD waste in regular medical waste (red bag) containers
• Disposing of HD waste in regular municipal solid waste
• Compacting or grinding HD waste (may generate aerosols)
• Treating HD waste by autoclaving (does not deactivate most hazardous drugs and may generate hazardous vapors)

11. Decontamination, Deactivation, and Cleaning

The terms decontamination, deactivation, and cleaning have specific, distinct meanings in the context of hazardous drug handling. A proper surface cleaning protocol for HD-contaminated areas involves all three processes, performed in the correct sequence.⁴

11.1 Definitions

11.2 Decontamination and Cleaning Agents

11.3 Three-Step Decontamination Protocol for Surfaces

This protocol applies to all surfaces in HD handling areas, including BSC work surfaces, countertops, floors, and equipment in compounding, administration, and storage areas.⁵

Step 1 — Deactivation/Decontamination:

1. Apply the decontamination agent (sodium hypochlorite solution or commercial decontamination product) to the surface
2. Allow adequate contact time:
   • Sodium hypochlorite 2%: minimum 30 minutes (or until visibly dry, then reapply and allow another contact period)
   • Commercial products: per manufacturer’s instructions (typically 1–30 minutes depending on the product)
3. Wipe the surface with clean, disposable towels or pads to remove the decontamination solution and any dissolved drug residue
4. Discard wipes in HD waste

Step 2 — Cleaning:

1. Apply detergent or neutral pH cleaning solution to the surface
2. Scrub the surface to physically remove any remaining drug residue and decontamination chemical residue
3. Wipe with clean, disposable towels or pads
4. Discard wipes in HD waste

Step 3 — Rinse:

1. Wipe the surface with clean water (sterile water for BSC/CACI work surfaces; clean tap water for floors and other surfaces)
2. Dry the surface with clean, disposable towels
3. Discard all materials in HD waste

11.4 Decontamination Schedule

11.5 Surface Wipe Sampling (Environmental Monitoring)

Surface wipe sampling is a quality assurance tool used to evaluate the effectiveness of containment and cleaning practices. While not universally mandated by regulation, it is strongly recommended as a best practice and is required by some jurisdictions and accreditation bodies.⁶

Program elements:

References