HIV CD4/Viral Load Treatment Threshold

Determines ART initiation threshold: start ART for all HIV-positive individuals regardless of CD4 count (current guidelines); historically CD4 <350 cells/µL was the threshold. Undetectable viral load (<200 copies/mL) confirms treatment success and prevents transmission.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How to Use

Enter the values for the scenario you are assessing. Determines ART initiation threshold: start ART for all HIV-positive individuals regardless of CD4 count (current guidelines); historically CD4 <350 cells/µL was the threshold. Undetectable viral load (<200 copies/mL) confirms treatment success and prevents transmission. Use the hiv art threshold result to inform your calculation.

Frequently Asked Questions