8.3 Hand Hygiene and PPE Selection

Hand hygiene and PPE are linked decisions

Hand hygiene and personal protective equipment are often tested together because gloves do not make hands permanently clean. Gloves can tear, leak, become contaminated, or contaminate other surfaces when misused. The RDA must know when to clean hands, when to glove, when to change PPE, and when to avoid touching clean objects with contaminated barriers.

Perform hand hygiene before putting on gloves, after removing gloves when indicated, before and after patient contact according to protocol, after touching contaminated surfaces, after contact with blood or saliva, and before leaving the operatory for clean tasks. Use the method required by office protocol and the condition of the hands. If hands are visibly soiled, handwashing is necessary. Keep nails and jewelry consistent with infection-control expectations.

Glove use is a frequent exam trap. Gloves are not worn to answer a personal phone, write with a clean pen, open a clean drawer, or touch the face. If gloves become contaminated during patient care, do not use them to adjust glasses, pull supplies from storage, or type on an unprotected keyboard. Remove gloves safely, perform hand hygiene as indicated, and continue with clean hands or new gloves.

PPE selection depends on the procedure. A brief conversation with no exposure risk is different from ultrasonic instrumentation, polishing, sealant placement with air-water use, oral surgery support, or disinfection. If splatter or aerosols are expected, mask, eye protection, face shield as needed, gloves, and protective clothing become central. PPE should fit, be available before treatment, and not block safe vision or movement.

Donning and doffing order may be tested indirectly. The key is to avoid contaminating skin, clothing, clean surfaces, or mucous membranes while putting PPE on or taking it off. Remove contaminated items carefully. Do not snap gloves or shake gowns. Do not carry contaminated PPE into nonclinical areas. Dispose of or process reusable items according to office protocol.

A practical PPE decision list:

• Ask what exposure is expected: contact only, spatter, aerosol, chemical, or sharps risk.
• Clean hands before gloving and whenever moving from contaminated to clean tasks.
• Keep gloved hands in the clinical task area and away from clean storage or personal items.
• Replace PPE that is wet, damaged, visibly contaminated, or no longer protective.
• Report missing PPE supplies or fit problems before the procedure starts.

In exam scenarios, the correct answer often protects the next clean surface. If an option lets contaminated gloves touch a keyboard, drawer, or face, it is likely wrong. If an option pairs hand hygiene with appropriate PPE correction, it is usually safer.