Phlebotomist at risk (Needle Stick Injury) - USMLE Forums
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  #1  
Old 02-23-2011
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Arrow Phlebotomist at risk (Needle Stick Injury)

A phlebotomist inadvertently sticks himself with a needle after drawing blood from a patient. Which of the following infection is the phlebotomist at MOST risk for contracting?

A. HIV
B. CMV
C. HBV
D. HSV
E. HCV
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  #2  
Old 02-23-2011
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HBV, it's the one that requires the lowest viral load to be infective.
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Old 02-23-2011
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B is really bad!

The risk of contracting HIV from a stick with a needle, contaminated with HIV infected blood, is 3 out of a thousand (0.3%). The risk is much lower for accidental body fluid contact with broken skin. There is virtually no risk in touching an HIV infected patient, unless there is contact with blood or body fluid. The risk goes up, if the injury is deep, the needle was in patient's artery, vein, or had visible blood on it, or if the patient has a high viral load.

To put the risk of transmission of HIV by needle stick (0.3%) into perspective, the risk of transmission of Hepatitis B virus after a needle stick from a patient who is Hepatitis Be antigen positive is about 30 %, and that for Hepatitis C virus is about 3%.

Every medical student, doctor and health care worker must know these.
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Old 02-23-2011
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Yep, answer is HBV.

HSV was kind of funny option though
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Old 02-23-2011
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B. CMV - Its the commonest infection risk transmitted by blood - also the commonest infection worldwide and almost everyone has antibodies to it.
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Old 02-23-2011
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Sorry I meant

HBV as the answer
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Old 02-23-2011
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Quote:
Originally Posted by donofitaly View Post
B. CMV - Its the commonest infection risk transmitted by blood - also the commonest infection worldwide and almost everyone has antibodies to it.
Yea, I wrote CMV accidentally, I meant HSV. Which is through skin-to-skin.

I also wrote the answer as B, when I was thinking of Hep B.
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Old 02-23-2011
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Quote:
Originally Posted by donofitaly View Post
B. CMV - Its the commonest infection risk transmitted by blood - also the commonest infection worldwide and almost everyone has antibodies to it.

Almost everybody has antibodies against CMV, so they are immune and they can not transmit disease. CMV is present in milk, saliva, urine, and tears. transmission mostly occurs with prolonged exposure, such as between children in households, or day care centers. Also sexual transmission. Anyway, blood is not the most common route.
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Old 02-23-2011
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Correct Answer C) hbv

Correct ans is C) HBV

HBV has the greatest viral load in blood of all viruses listed above.

Quote:
Originally Posted by FrontalBossing View Post
HBV, it's the one that requires the lowest viral load to be infective.

Quote:
Originally Posted by drahmednawaz View Post
B is really bad!

The risk of contracting HIV from a stick with a needle, contaminated with HIV infected blood, is 3 out of a thousand (0.3%). The risk is much lower for accidental body fluid contact with broken skin. There is virtually no risk in touching an HIV infected patient, unless there is contact with blood or body fluid. The risk goes up, if the injury is deep, the needle was in patient's artery, vein, or had visible blood on it, or if the patient has a high viral load.

To put the risk of transmission of HIV by needle stick (0.3%) into perspective, the risk of transmission of Hepatitis B virus after a needle stick from a patient who is Hepatitis Be antigen positive is about 30 %, and that for Hepatitis C virus is about 3%.

Every medical student, doctor and health care worker must know these.
Quote:
Originally Posted by patelMD View Post
Yea, I wrote CMV accidentally, I meant HSV. Which is through skin-to-skin.

I also wrote the answer as B, when I was thinking of Hep B.
you guyz are really smart. This qn I got it from a "remembered qns 2010" posted by some members. And you all gonna ace the exam for sure
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