Chemotherapy
Routes of exposure

Antineoplastic drugs are usually given through intravenous, intramuscular, intrathecal, or subcutaneous administration. In most cases, before the medication is administered to the patient, it needs to be prepared and handled by several workers. Any worker who is involved in handling, preparing, or administering the drugs, or with cleaning objects that have come into contact with antineoplastic drugs, is potentially exposed to hazardous drugs. Health care workers are exposed to drugs in different circumstances, such as when pharmacists and pharmacy technicians prepare and handle antineoplastic drugs and when nurses and physicians administer the drugs to patients. Additionally, those who are responsible for disposing antineoplastic drugs in health care facilities are also at risk of exposure.

Dermal exposure is thought to be the main route of exposure due to the fact that significant amounts of the antineoplastic agents have been found in the gloves worn by healthcare workers who prepare, handle, and administer the agents. Another noteworthy route of exposure is inhalation of the drugs' vapors. Multiple studies have investigated inhalation as a route of exposure, and although air sampling has not shown any dangerous levels, it is still a potential route of exposure. Ingestion by hand to mouth is a route of exposure that is less likely compared to others because of the enforced hygienic standard in the health institutions. However, it is still a potential route, especially in the workplace, outside of a health institute. One can also be exposed to these hazardous drugs through injection by needle sticks. Research conducted in this area has established that occupational exposure occurs by examining evidence in multiple urine samples from health care workers.
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