[Question #1827] Window period HIV . How early can combo test be taken
90 months ago
|
Edward W. Hook M.D.
90 months ago
|
Welcome to our Forum. Dr. Handsfield and I share the Forum and today I happened to pick up your question and will be answering it. We have worked together for more than 30 years and never disagree on our assessments.
The event you describe was a no risk event. If you had asked me if you need testing, I would have said no, definitely not. I'm not sure why a nurse would be using a hollow point needle to a finger stick but even so, there has never been a case of HIV transmitted under the circumstances you describe. In answer to your questions however, a 4th generation, combination HIV antigen/antibody test might begin to detect HIV as soon as a week after exposure however as you mention, results would not be definitive until four weeks after the exposure. It is difficult to predict what proportion of infections might be detected as early as 10 days.
You are worrying needlessly. I hope this message will help you to move forward without concern. EWH .
90 months ago
|
Edward W. Hook M.D.
90 months ago
|
You need to stay off the internet. It will often mislead and misinform you. We have little patience with hypothetical. "what if" questions, particularly if they are repetitive as yours are. Brief answers to your questions follow:
1. Probably. Please understand that health care professionals wear gloves to protect themselves from patients, not the other way around. If her glove had failed she would have changed it.
2. Infectious blood cam remain infectious within a hollow needle. There is no reason for you to be concerned however as the needle was new and there was no evidence that anyone other than you was stuck with it.
3. This is an unrealistic question. Hypothetically yes, realistically no.
4. HIV can be transmitted through injection of small amounts of infectious blood deep into tissue.
5. Give up on this line of questioning. There was no risk from anything you have described. You need to move on.
The idea that HIV is transmitted through barber shops is another internet-based, hypothetical myth. This question has no relationship to your original question. I have nothing more to say about this.
We have explained this multiple times. The package inserts of newer tests use older tests as their standard for evaluation. Research data however clearly show that at 4 weeks, combination, 4th generation HIV tests provide conclusive results. Dr. Handsfield and I are not alone is this- this is widely accepted by experts. The CDC and FDA have to be conservative in their advice and approach.
Please, no more hypothetical or repetitive questions questions. If you do, they will deleted and ignored. EWH
90 months ago
|
Edward W. Hook M.D.
90 months ago
|
Correct, there is no medical basis for you to be concerned about acquisition of HIV (or hepatitis or other blood borne-STIs) from the situation you describe above. This your additional questions (which I will answer below) are unnecessary and again demonstrate the influence of the internet on you and your unwarranted fears.
1. The symptoms of the ARS typically occur between one and two weeks after exposure. Almost never after 3-4 weeks.
2. There are no data on what proportion of persons acquire at least one symptom. Fewer than half of persons who get HIV report ARS-type symptoms. Most importantly however, over 99% of persons with ARS-type symptoms do not have HIV but have other, non-STI, non-HIV related viral syndromes.
I encourage you to move forward from here. This thread is now complete and will be closed in a few hours. EWH
90 months ago
|