TL;DR

Medical Asepsis (Clean Technique): Practices reducing pathogen numbers — distinguished from surgical asepsis (sterile technique).

By Valenke Exam Prep Team·Last updated 2026-06-02

Medical Asepsis (Clean Technique)

CST SURGICAL TECH CNA NNAAP MEDICAL ASSISTANT

Definition

Practices reducing pathogen numbers — distinguished from surgical asepsis (sterile technique).

Equipment & Tools

Instruments and tools relevant to medical asepsis (clean technique):

Instrument	Category	Use
Mayo scissors	Cutting	Heavy tissue and suture cutting, straight (suture) or curved (tissue)
Kocher clamp	Clamping	Grasping heavy tissue (fascia), has teeth, NOT for vessels
Balfour retractor	Retraction	Self-retaining abdominal retractor with lateral and bladder blades
Deaver retractor	Retraction	Deep retraction in abdominal/pelvic surgery, C-shaped blade
Mosquito clamp	Clamping	Hemostasis on small vessels, fully serrated, delicate

Safety Considerations

Maintaining safety during procedures involving medical asepsis (clean technique) requires adherence to sterile technique:

Movement around the sterile field must not cause air currents, no reaching over the field, no turning back to the field
Sterile drapes are placed from the operative site outward (near to far)
Sterile persons touch only sterile items; unsterile persons touch only unsterile items

Calculation Methods

Relevant parameters for medical asepsis (clean technique) in the surgical setting:

Steam (autoclave): Saturated steam under pressure. Gravity: 250 F (121 C) x 30 min. Prevacuum: 270 F (132 C) x 4 min. Flash: 270 F x 3 min (unwrapped)
ETO (ethylene oxide): Chemical gas sterilization. 600mg/L concentration, 130 F, 2-5 hours exposure, 8-12 hours aeration. For heat/moisture-sensitive items

Regulatory Context

Regulatory context for medical asepsis (clean technique) includes federal and state requirements. Healthcare facilities must comply with CMS Conditions of Participation, state licensure requirements, and accreditation standards (Joint Commission or AAAHC). Non-compliance can result in citations, fines, or loss of Medicare/Medicaid reimbursement.

Why It Matters

Difference between medical and surgical asepsis tested on CST, CNA, and MA exams.

Practice This Topic

Practice cst anc sterilization → CST SURGICAL TECH Practice cna saf infection → CNA NNAAP Practice ma gen infection → MEDICAL ASSISTANT

Ready to practice for the CST SURGICAL TECH?

Adaptive practice powered by Item Response Theory targets your weak areas. Start with 3 free sessions.

Start free practice →

Frequently Asked Questions

What instruments are used for medical asepsis (clean technique)?▼

For medical asepsis (clean technique): Kocher clamp (Clamping): Grasping heavy tissue (fascia), has teeth, NOT for vessels. Mayo scissors (Cutting): Heavy tissue and suture cutting, straight (suture) or curved (tissue). Mosquito clamp (Clamping): Hemostasis on small vessels, fully serrated, delicate.

What sterile technique rules apply to medical asepsis (clean technique)?▼

For medical asepsis (clean technique): Sterile persons touch only sterile items; unsterile persons touch only unsterile items. Sterile field is created as close to the time of use as possible and never left unattended. Movement around the sterile field must not cause air currents, no reaching over the field, no turning back to the field.

What sterilization method is used for equipment related to medical asepsis (clean technique)?▼

For medical asepsis (clean technique): Cidex OPA: High-level disinfection (not sterilization). Parameters: 0.55% OPA, 12 minutes soak at 20 C. For semi-critical items (endoscopes). Rinse thoroughly.