👤 By the CinnaRN Clinical Content Team🕐 Updated 2026-08-23🏷️ Safety & Infection Control🔖 Free to read, print, and share
Also known as: sterile field · aseptic technique · surgical sterile setup
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Use this quick-reference guide to spot, treat, and prevent Sterile Technique on the NCLEX. Keep it handy during review and on exam day!
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📒 The 1-minute cheat sheet
📌 Rules
Outer 1 in. of field = contaminated
Below waist/table = unsterile
Keep hands above waist, in sight
✅ Do
Open flap AWAY from body first
Hold items above waist level
Pour without splashing field
📌 Avoid
Never reach over sterile field
Wet field = contaminated (strikethrough)
🩺 Watch
Turn back on field = unsterile
📚 Sterile Technique — full study notes
The cheat sheet above is your quick recall card. These notes go deeper — what it is, what to do first, what must be reported, and what to teach.
Sterile technique creates and maintains a field that is free of all microorganisms for invasive procedures such as catheter insertion, dressing changes on deep wounds, and surgery. The principle is that any break in sterility contaminates the entire field. It differs from medical (clean) asepsis, which only reduces microorganisms.
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Key points
Understand these first
Only the inner area of a sterile field is sterile; the outer 1-inch border is considered contaminated.
Anything below the waist or table level, or out of direct sight, is no longer sterile.
Sterile touches only sterile; if a sterile item contacts a non-sterile surface it is contaminated.
Moisture wicks organisms upward, so a wet sterile field is a contaminated field (strike-through).
Reaching over a sterile field or turning your back on it breaks sterility.
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Nursing priorities
What to do, in order
Perform hand hygiene and open packages away from the body, opening the first flap away from you.
Keep sterile gloved hands above waist level and within view at all times.
Add sterile items by dropping them onto the field without reaching over it.
Discard the field and restart if any contamination or doubt occurs.
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Red flags — report now
Escalate immediately
When in doubt about sterility, consider it contaminated and start over.
Never reach across or turn your back on a sterile field.
Do not use a sterile field that has become wet, torn, or unattended.
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Patient teaching
What patients must know
Patients are asked not to touch or reach toward the sterile area during a procedure.
Explain that strict technique prevents introducing infection during the procedure.
❓ Sterile Technique: NCLEX FAQs
What are the priority nursing interventions for Sterile Technique?
Perform hand hygiene and open packages away from the body, opening the first flap away from you. Keep sterile gloved hands above waist level and within view at all times. Add sterile items by dropping them onto the field without reaching over it. Discard the field and restart if any contamination or doubt occurs.
What are the warning signs of Sterile Technique a nurse must report?
When in doubt about sterility, consider it contaminated and start over. Never reach across or turn your back on a sterile field. Do not use a sterile field that has become wet, torn, or unattended.
What do I need to know about Sterile Technique for the NCLEX?
Only the inner area of a sterile field is sterile; the outer 1-inch border is considered contaminated. Anything below the waist or table level, or out of direct sight, is no longer sterile. Sterile touches only sterile; if a sterile item contacts a non-sterile surface it is contaminated. Moisture wicks organisms upward, so a wet sterile field is a contaminated field (strike-through).
What patient teaching is important for Sterile Technique?
Patients are asked not to touch or reach toward the sterile area during a procedure. Explain that strict technique prevents introducing infection during the procedure.
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Quick Tip
Only the inner area of a sterile field is sterile; the outer 1-inch border is considered contaminated.