The patient has a viral titer of 200 on day four after infection, 30 at 4 weeks after infection, 600 at 8 months after infection, and 23 after 1 year of infection. This is likely a(n) _______________ infection.

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Hi, everybody. Welcome back. Our next problem says, choose the correct management. The patient has the following tighter results for hepatitis B HPSAG negative H BS A B in the parenthesis, anti H BS negative and then H BC A B or anti H BC negative answer choices are a, the patient is immune and requires no vaccination. B. The patient is currently contagious and needs treatment. See, the patient was previously infected non contagious and requires no vaccination or D the patient is not immune, no history of previous infection and requires vaccination. We need to think about what each of these titers means. Our first one, H BS A G which means hepatitis B. Let's put HB. So we have a surface antigen. So if the antigen is present a positive result, there would mean that the person is actually currently infected with hepatitis B and might be contagious. So in this case, we have a negative result. So the person is not currently infected. Then our second title is HB SAB or Anti H BS. This equals Hepatitis B surface antibody. We have that A B there. So a positive result for this one indicates that the patient is immune to hepatitis B either through previous infection or vaccination. In this case, again, a negative result for this would mean that the patient is not immune. And then finally, H BC A B or anti H BC is Hepatitis B core antibody. A positive result for this one indicates that the patient has a past or current infection but is not immune or necessarily. So you need to interpret that in combination with the other two results. But it does mean there was some exposure, either a, so either a past or current infection. In this case, the patient is negative for this as well, which means the patient was never exposed to hepatitis B. So our patient is never been exposed to Hepatitis B, not currently infected with it and has no immunity. So the man of proper management here is choice D which says the patient is not immune, no history of previous infection and requires vaccination since there's no immunity there. Let's look through our other answer. Choices. Choice. A the patient is immune and requires no vaccination. Then you'd want to see a positive result for that Hepatitis B surface antibody test. Since that shows immunity. Choice B, the patient is currently contagious and needs treatment there. You would expect a positive test on the hepatitis B surface antigen test. And then finally to C the patient was previously infected non contagious and requires no vaccination. You expect to see a negative HB service antigen test showing they're not currently contagious, but you'd want to see a positive H BS A BHB surface antibody test indicating immunity to the virus and therefore not needing to be vaccinated. In addition, since that specifies that the patient was previously infected, you'd also expect to see a positive H BC A B just ran out of space there since that immunity is not due to vaccination but actually a previous infection. So then you'd expect to see that positive result on the core antibody test. But in the case of our patient with triple negative results, the correct course of action and interpretation is choice d that our patient is not immune has no history of previous infection and requires vaccination. See you in the next video.

The patient has a viral titer of 200 on day four after infection, 30 at 4 weeks after infection, 600 at 8 months after infection, and 23 after 1 year of infection. This is likely a(n) _______________ infection.

Verified video answer for a similar problem:

Key Concepts

Viral Titer and Its Significance

Types of Viral Infections

Interpreting Viral Titer Fluctuations Over Time