Nokea
It is important to use sterile technique when you insert tubes and needles because
- A. It is standard hospital policy and procedure, and you must comply with it.
- B. You may be carrying pathogens from patient to patient using only clean technique.
- C. You are entering body tissues not normally exposed to pathogens.
- D. You are bypassing usual body defenses against infection.
Correct Answer: C,D
Rationale: Sterile technique is critical when inserting tubes and needles because these procedures involve entering body tissues not normally exposed to pathogens and bypassing natural defenses, increasing infection risk if sterility is not maintained.
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Which are restricted areas in the hospital to help maintain surgical asepsis?
- A. Burn units
- B. Pediatric units
- C. Heart catheterization laboratories
- D. Surgical suites
- E. Delivery rooms
- F. Cardiac care units
Correct Answer: C,D,E
Rationale: Restricted areas like heart catheterization laboratories, surgical suites, and delivery rooms require strict surgical asepsis to minimize infection risk due to invasive procedures performed there.
How can you tell if a surgical pack has been sterilized?
- A. The peel pack will be sealed all the way around.
- B. The sterilizer's initials will be written on the pack.
- C. The indicator tape hash marks will appear black.
- D. The indicator tape hash marks will disappear.
Correct Answer: C
Rationale: Sterilization is confirmed by the chemical indicator tape, which changes color (e.g., hash marks turn black) after exposure to the sterilization process, indicating the pack has been properly sterilized.
Inserting a tube through the nose and into the stomach should use which technique?
- A. Sterile
- B. Clean
Correct Answer: A
Rationale: Inserting a nasogastric tube requires sterile technique because it enters the stomach, bypassing normal body defenses and posing an infection risk if contaminated.
You are assigned to observe in the cardiac catheterization laboratory. What will you do before leaving the unit to go to lunch?
- A. Change from hospital scrubs back into street clothes.
- B. Cover your scrubs with a laboratory coat or cloth isolation gown.
- C. Wear shoe covers over your shoes and a patient gown over your scrubs.
- D. No special precautions are needed when you leave the unit for lunch.
Correct Answer: B
Rationale: Covering scrubs with a laboratory coat or isolation gown prevents contamination of the sterile environment when returning to the cardiac catheterization laboratory after leaving for lunch.
Washing the perineal area should use which technique?
- A. Sterile
- B. Clean
Correct Answer: B
Rationale: Washing the perineal area uses clean technique as it involves external skin cleaning, not entry into a sterile body cavity.