Given the data, what is the Apnea-Hypopnea Index (AHI) classification?

The Apnea-Hypopnea Index (AHI) is a critical parameter used to classify the severity of sleep apnea based on the number of apneas (complete cessation of breathing) and hypopneas (partial cessation of breathing) that occur per hour of sleep. Understanding the classification of AHI is essential for diagnosing and determining treatment options for sleep disorders.

An AHI of 11 falls into the moderate sleep apnea category according to the commonly accepted classifications. The categories generally indicate:

• AHI less than 5: Normal (no sleep apnea)

• AHI between 5 and 15: Mild sleep apnea

• AHI between 15 and 30: Moderate sleep apnea

• AHI greater than 30: Severe sleep apnea

Since an AHI of 11 is above the threshold for mild and below the threshold for severe, it is classified as moderate sleep apnea, thus aligning with choice C. This classification helps healthcare providers in assessing the condition and planning appropriate management strategies for the patient.