Could someone verify this UWorld question to add to the extra field?
Amboss has 5-10 so we’ll keep the text as is
https://next.amboss.com/us/article/ZI0ZYh?q=a-a%20gradient#Ya7948b2548a3f93a67a07298ba2d6b67
Per QID explanation: “In healthy individuals, a normal A-a gradient is typically between 4 and 15 mm Hg, with older individuals having higher normal values due to an age-relatec decline in O2-diffusing capacity.”
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