Advertisement
The Body: The Complete HIV/AIDS Resource
Follow Us Follow Us on Facebook Follow Us on Twitter Download Our App
Professionals >> Visit The Body PROThe Body en Espanol
Read Now: TheBodyPRO.com Covers AIDS 2014
   
Ask the Experts About

Choosing Your MedsChoosing Your Meds
           
Rollover images to visit our other forums!
Recent AnswersAsk a Question
  
  • Email Email
  • Glossary Glossary


What is Log Plasma RNA?
Feb 14, 1997

I read an article entitled Can HIV Be Cured, and in it there was a graphic of the Idealized Effect of Antiretroviral Therapy on Plasma HIV levels Over 1 year. On the graphic there is a line stating the Log Plasma RNA, and because I am doing a research paper on this topic, I was wondering what Log Plasma RNA is.

Response from Dr. Cohen

The plasma RNA is commonly referred to as "viral load," a measure of the amount of HIV virus in the plasma. It can be expressed in absolute numbers (of copies per ml) or in logs. I don't want to get into a high school math lesson, here, but to be brief, a one log change in viral load is a 10-fold change; a two log change is a 100-fold change; a three log change is a 1000-fold change, etc. Thus, a drop in viral load from 300,000 copies/ML to 300 copies/mL is a three log drop.

If you have a viral load value expressed in logs, you just take your calculator, enter the number, and (in most cases) press INV and then LOG. Conversely, if you want to change an absolute number into a log, you enter the number and press LOG.



Previous
Does increased viral load mean treatment failure?
Next
viral loads results in logs

  
  • Email Email
  • Glossary Glossary

 Get Email Notifications When This Forum Updates or Subscribe With RSS


 
Advertisement



Q&A TERMS OF USE

This forum is designed for educational purposes only, and experts are not rendering medical, mental health, legal or other professional advice or services. If you have or suspect you may have a medical, mental health, legal or other problem that requires advice, consult your own caregiver, attorney or other qualified professional.

Experts appearing on this page are independent and are solely responsible for editing and fact-checking their material. Neither TheBody.com nor any advertiser is the publisher or speaker of posted visitors' questions or the experts' material.

Review our complete terms of use and copyright notice.

Powered by ExpertViewpoint

Advertisement