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Kaplan Qbank USMLE



Author3 Posts
  #1

hi guys
can anyone explain the difference between somogyi effect and dawn phenomenon?both are rise in blood glucose concentration,so y ar ethey different?
:?:
bye
dev

  #2

Diagnosis key is to check 3AM Glucose
1. Somogi-- 3AM glusoce low, then cetecholamine.... elevated, then morning glucose high.
2. Down-- growth hormone...elevated gradually since fall asleep, so 3AM glusoce high, morning glucose even higher.

  #3

Somogyi-->early morning hyperglycemia.Cause is usually ^ amount if insulin that wud led to hypoglycemia arround 3 am......couterregulatory hormones kick in leading to hyperglycemia
Dawn phenomenon-->early morning hyperglycemia.Cause is lower than required dose of inslin leading to hyperglycemia.
To manage u first treat it as if it is Somogyi ----> decrease insulin and moniter bld glucose during night .cz if u increase insulin(thinking it is dawn )then pt is at risk of having sever hypoglycemia which can be fatal.
Any correction????







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