What is the peak time for ultra-long-acting insulin?

What is the peak time for ultra-long-acting insulin?

• A. 1-3 hours
• B. 4-6 hours
• C. 0-1 hours
• D. Minimal peak

Answer: (D)

Ultra-long-acting insulins are designed to deliver a steady, peakless basal effect over an extended period. Their mechanism—such as forming stable, slow-dissolving structures after injection—provides gradual release with a very long duration and no pronounced peak. That means there isn’t a distinct hour when the insulin action spikes. The other options imply a specific spike within a few hours, which doesn’t match how ultra-long-acting insulins behave. So the peak is minimal.

Ultra-long-acting insulins are designed to deliver a steady, peakless basal effect over an extended period. Their mechanism—such as forming stable, slow-dissolving structures after injection—provides gradual release with a very long duration and no pronounced peak. That means there isn’t a distinct hour when the insulin action spikes. The other options imply a specific spike within a few hours, which doesn’t match how ultra-long-acting insulins behave. So the peak is minimal.