Nokea
Handling needles, syringes, and lancets should use which technique?
- A. Sterile
- B. Clean
Correct Answer: A
Rationale: Handling needles, syringes, and lancets requires sterile technique to prevent contamination, as these items may enter body tissues or fluids.
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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.
Which is true of setting up and adding to a sterile field?
- A. The outer 2-inch margin of the sterile drape is considered unsterile.
- B. If the sterile drape extends below the table surface, the parts below it are considered unsterile.
- C. You may place unsterile items on a sterile field as long as you wear sterile gloves.
- D. You may touch the outer 1 inch of the sterile drape with your bare hand because it is considered unsterile.
- E. A sterile drape with a moisture-proof back is not considered unsterile if it becomes wet.
- F. When pouring sterile liquids into a basin on a sterile field, hold the bottle 12 to 14 inches above the basin.
Correct Answer: B,D
Rationale: The parts of a sterile drape extending below the table surface are considered unsterile, and the outer 1-inch margin of the drape is also unsterile, allowing bare hand contact without contaminating the field. The other options are incorrect as they violate sterile technique principles.
Inserting a urinary catheter should use which technique?
- A. Sterile
- B. Clean
Correct Answer: A
Rationale: Inserting a urinary catheter requires sterile technique because it involves entering the bladder, a sterile body cavity, to prevent infection.
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.
On the following diagram, label the parts of the needle and syringe that need to be kept sterile.
- A. Tip of the needle
- B. Barrel of the syringe
- C. Plunger of the syringe
- D. Hub of the needle
- E. Bevel of the needle
- F. Flange of the syringe
- G. Inside of the syringe barrel
Correct Answer: A,D,E,G
Rationale: The tip, hub, bevel of the needle, and the inside of the syringe barrel must be kept sterile as they come into direct contact with the patient's tissues or fluids, preventing infection.