CNT CLEAN NEEDLE TECHNIQUE
EXAM 4 QUESTIONS AND VERIFIED
SOLUTIONS LATEST UPDATE THIS
YEAR
1. According to the CDC, how long can the Hepatitis B virus (HBV) survive on environmental
surfaces in an office setting?
A. At least 24 hours
B. Up to 3 days
C. Indefinitely if not cleaned
D. At least 7 days
Answer: D
Conceptual Explanation: HBV is a highly resilient virus and is known to survive on
surfaces at room temperature for at least 7 days, making environmental disinfection
crucial.
2. What is the required duration for vigorous handwashing with soap and water to effectively
remove transient flora before acupuncture?
A. 5 to 10 seconds
B. 10 to 20 seconds
,C. 30 to 45 seconds
D. At least 1 minute
Answer: B
Conceptual Explanation: The CNT manual and CDC guidelines recommend scrubbing all
surfaces of the hands for 10 to 20 seconds to mechanically remove transient
microorganisms.
3. At what point should a sharps container be sealed and replaced to prevent needlestick
injuries?
A. When it is 100% full
B. When it is 1/2 full
C. Once every 30 days regardless of volume
D. When it reaches the 3/4 full line
Answer: D
Conceptual Explanation: To prevent overfilling and the risk of needles protruding or
falling out, sharps containers must be replaced when they are 3/4 full.
4. Which of the following is considered a ‘Critical Item’ according to Spaulding’s
Classification?
A. Acupuncture needles
B. Blood pressure cuffs
, C. Cupping glass used on intact skin
D. Massage tables
Answer: A
Conceptual Explanation: Critical items are those that enter sterile tissue or the vascular
system; because acupuncture needles penetrate the skin, they must be sterile.
5. When cleaning a blood spill on a non-porous floor, what is the recommended dilution of
sodium hypochlorite (bleach) to water?
A. 1:10
B. 1:50
C. 1:100
D. 1:5
Answer: A
Conceptual Explanation: A 1:10 dilution of bleach is required for cleaning up blood spills
to ensure the neutralization of bloodborne pathogens like HIV and HBV.
6. Hepatitis C (HCV) is most commonly transmitted through which route?
A. Large-scale blood-to-blood contact
B. Fecal-oral route
C. Respiratory droplets
EXAM 4 QUESTIONS AND VERIFIED
SOLUTIONS LATEST UPDATE THIS
YEAR
1. According to the CDC, how long can the Hepatitis B virus (HBV) survive on environmental
surfaces in an office setting?
A. At least 24 hours
B. Up to 3 days
C. Indefinitely if not cleaned
D. At least 7 days
Answer: D
Conceptual Explanation: HBV is a highly resilient virus and is known to survive on
surfaces at room temperature for at least 7 days, making environmental disinfection
crucial.
2. What is the required duration for vigorous handwashing with soap and water to effectively
remove transient flora before acupuncture?
A. 5 to 10 seconds
B. 10 to 20 seconds
,C. 30 to 45 seconds
D. At least 1 minute
Answer: B
Conceptual Explanation: The CNT manual and CDC guidelines recommend scrubbing all
surfaces of the hands for 10 to 20 seconds to mechanically remove transient
microorganisms.
3. At what point should a sharps container be sealed and replaced to prevent needlestick
injuries?
A. When it is 100% full
B. When it is 1/2 full
C. Once every 30 days regardless of volume
D. When it reaches the 3/4 full line
Answer: D
Conceptual Explanation: To prevent overfilling and the risk of needles protruding or
falling out, sharps containers must be replaced when they are 3/4 full.
4. Which of the following is considered a ‘Critical Item’ according to Spaulding’s
Classification?
A. Acupuncture needles
B. Blood pressure cuffs
, C. Cupping glass used on intact skin
D. Massage tables
Answer: A
Conceptual Explanation: Critical items are those that enter sterile tissue or the vascular
system; because acupuncture needles penetrate the skin, they must be sterile.
5. When cleaning a blood spill on a non-porous floor, what is the recommended dilution of
sodium hypochlorite (bleach) to water?
A. 1:10
B. 1:50
C. 1:100
D. 1:5
Answer: A
Conceptual Explanation: A 1:10 dilution of bleach is required for cleaning up blood spills
to ensure the neutralization of bloodborne pathogens like HIV and HBV.
6. Hepatitis C (HCV) is most commonly transmitted through which route?
A. Large-scale blood-to-blood contact
B. Fecal-oral route
C. Respiratory droplets
