Nursing Review: Safety and Infection Control

Infection Prevention and Control: Clinical Essentials

Infection Prevention and Control (IPC) is fundamental to patient safety. Healthcare-Associated Infections (HAIs) cause significant morbidity and mortality. Nurses serve as the primary defense against pathogen transmission. This review consolidates essential protocols—from hand hygiene to isolation precautions—required to break the chain of infection and ensure a safe clinical environment.

The Centers for Disease Control and Prevention (CDC) defines standards for isolation precautions. Adherence is a professional and ethical mandate.

Standard Precautions

Apply to all patients, regardless of diagnosis.
Hand Hygiene: Alcohol-based rub (20s) or soap/water (20s) if soiled or C. diff suspected.
PPE: Gloves for fluids/mucous membranes. Gown/mask/goggles for splash risk.
Sharps: Engage safety devices immediately. Do not recap needles.

Transmission-Based Precautions

Used in addition to Standard Precautions for known/suspected pathogens.

Contact Precautions

Pathogens: MRSA, VRE, C. diff, Scabies.
PPE: Gown and Gloves upon entry.
Environment: Private room/cohort. Dedicated equipment (stethoscope/BP cuff).

Droplet Precautions

Pathogens: Influenza, Meningitis, Pertussis.
Transmission: Large particles traveling 3-6 feet.
PPE: Surgical Mask. Goggles/Face Shield if spray risk.

Airborne Precautions

Pathogens: TB, Measles, Varicella.
Transmission: Small suspended particles.
PPE: N95 Respirator/PAPR.
Environment: Negative Pressure Room (AIIR), door closed.

Antimicrobial Stewardship

Nurses play a critical role in preventing resistance.
Antibiotic Time-Outs: Reviewing necessity of antibiotics after 48 hours.
Culture Collection: Obtaining cultures before starting antibiotics to ensure accurate targeting.
De-escalation: Prompting providers to switch from broad to narrow-spectrum agents once sensitivities return.

National Patient Safety Goals (NPSG)

Established by The Joint Commission.
Identify Patients: Two identifiers (Name + DOB).
Staff Communication: Prompt reporting of critical results.
Safe Medicine Use: Labeling meds; reconciliation.
Infection Prevention: Hand hygiene adherence. Prevention of CAUTI/CLABSI.

Surgical vs. Medical Asepsis

Medical Asepsis (“Clean”): Reduces number of pathogens. Used for meds, enemas, tube feedings. Hand hygiene + clean gloves.
Surgical Asepsis (“Sterile”): Eliminates all microorganisms. Used for catheterization, dressing changes, IV insertion. Sterile gloves + sterile field.

Environmental Hygiene

Spaulding Classification:
Critical: Enters sterile tissue (surgical instruments) – Sterilization.
Semi-Critical: Touches mucous membranes (endoscopes) – High-level disinfection.
Non-Critical: Touches intact skin (BP cuffs) – Low-level disinfection.
Wet Time: Disinfectants must remain wet on surface for manufacturer-specified time (e.g., 3 mins) to be effective.

PPE Protocols

Donning (On): Gown -> Mask -> Goggles -> Gloves.
Doffing (Off): Gloves -> Goggles -> Gown -> Mask -> Wash Hands. *Prioritize dirty-to-clean removal.*

FAQs: Safety & Infection Control

Conclusion

Safety and infection control are active responsibilities. Mastering precautions and National Patient Safety Goals protects vulnerable patients from preventable harm.