QT Measurement and Heart Rate Correction during Hypoglycemia: Is There a Bias?

Figure 1

Schematic design of the study. Measurements of ECG (•) are taken three times in a baseline interval prior to insulin injection (𝑡₋₃₀, 𝑡₋₁₀, and 𝑡₀), 15 minutes after insulin injection (𝑡₁₅), at blood glucose nadir (𝑡_hypo), and 90 minutes after blood glucose nadir (𝑡_post).