418.2 ð åèçïŒé«åž«åè / PGY OSCEïŒ
418.2.0.1 ð Cram Sheet
418.2.0.1.1 ð¥ é« yield 18
- æ¥æ§: DKA, HHS, hypoglycemia, lactic acidosis
- æ ¢æ§: micro (retin/neph/neuro) + macro (CAD/stroke/PAD/HF)
- DKA: T1 å€, glucose > 250 (eu-DKA exception), pH < 7.30, HCO3 < 18, AG > 10, ketone+
- HHS: T2 å€, glucose > 600, eff osm > 320, pH > 7.30, mortality 10-20%
- DKA Tx: fluid + insulin (0.1 U/kg/hr) + K + bicarb (only pH < 6.9)
- DKA resolution: AG closes (not glucose alone)
- SGLT2 â eu-DKA possible (hold pre-op)
- Retinopathy screen: T2 at dx, T1 5 yr after; annual
- DKD: ACE-i + SGLT2 + GLP-1 + finerenone
- DSPN: stocking-glove, sensory > motor, foot ulcer risk
- Pain neuropathy 1st line: pregabalin/gabapentin/duloxetine/amitriptyline
- Tapentadol = only approved opioid for DPN
- Annual foot exam + monofilament
- CV benefit drugs: SGLT2 + GLP-1
- HF in DM: SGLT2 mandatory regardless of HbA1c
- CKD eGFR > 20 + albuminuria: SGLT2 mandatory
- Anti-VEGF for DME
- Charcot foot: neuroarthropathy
418.2.0.1.2 ð¢ å¿ è
| é ç® | æžå |
|---|---|
| DKA glucose | > 250 |
| DKA pH | < 7.30 |
| DKA HCO3 | < 18 |
| DKA AG | > 10 |
| HHS glucose | > 600 |
| HHS eff osm | > 320 |
| HHS pH | > 7.30 |
| Insulin DKA bolus | 0.1 U/kg or 0.14 U/kg/hr no bolus |
| Insulin DKA infusion | 0.1 U/kg/hr |
| K hold insulin | < 3.3 |
| DKA fluid 1st hour | 1 L NS |
| Glucose drop target | 50-75 mg/dL/hr |
| HHS fluid deficit | 9-10 L |
| HHS mortality | 10-20% |
| Retinopathy screen T2 | At dx, annual |
| Retinopathy screen T1 | 5 yr post, annual |
| BP DM | < 130/80 |
418.2.0.2 â é« yield
418.2.0.2.1 DKA vs HHS Quick
| DKA | HHS | |
|---|---|---|
| Type | T1 mostly | T2 mostly |
| Age | younger | older |
| Glucose | 250-800 | > 600 (often > 1000) |
| Eff osm | normal-high | > 320 |
| pH | < 7.30 | > 7.30 |
| HCO3 | < 18 | > 18 |
| AG | > 10 | normal |
| Ketone | + | trace/â |
| Mental | varies | obtunded |
| Mortality | 1-5% | 10-20% |
| Onset | days | weeks |
418.2.0.2.2 DKA Treatment (5 æ¯æ±)
- Fluid: NS 1L/hr â 0.45% based on Na
- Insulin: 0.1 U/kg IV bolus + 0.1 U/kg/hr infusion (or skip bolus, 0.14 U/kg/hr)
- K: < 3.3 hold insulin; 3.3-5.3 add 20-30 in fluid; > 5.3 hold
- Bicarb: only if pH < 6.9
- Phosphate: only if < 1.0 + sx
418.2.0.2.3 Retinopathy
- NPDR: mild â moderate â severe
- PDR: neovascularization
- DME: center vs non-center
- Anti-VEGF: ranibizumab, aflibercept, bevacizumab, faricimab (22E)
- PRP for PDR
- Vitrectomy for vit hem / TRD
- Rapid HbA1c drop â transient worsening
418.2.0.2.4 DKD Drugs (èšé åº)
- ACE-i / ARB (1st line for proteinuria, even normotensive)
- SGLT2 inhibitor (eGFR > 20 + albuminuria â mandatory)
- GLP-1 RA (semaglutide CKD benefit, FLOW)
- Finerenone (FIDELIO, FIGARO; non-steroidal MRA)
- Other: HbA1c control, BP < 130/80, Na restriction, weight management
418.2.0.3 ð¯ èªææª¢æž¬
- DKA glucose threshold? â > 250 (or eu-DKA SGLT2 exception)
- DKA pH? â < 7.30
- DKA insulin? â 0.1 U/kg/hr
- DKA K hold insulin? â < 3.3
- DKA bicarb indication? â pH < 6.9
- DKA resolution criteria? â AG closes
- HHS eff osm? â > 320
- HHS mortality? â 10-20%
- eu-DKA cause? â SGLT2
- Retinopathy screen T2? â At dx
- Retinopathy screen T1? â 5 yr post
- PDR treatment? â PRP / anti-VEGF
- DME treatment? â Anti-VEGF
- DKD ACE-i indication? â Albuminuria (even normotensive)
- SGLT2 in CKD eGFR? â > 20 + albuminuria
- Finerenone trial? â FIDELIO + FIGARO
- DPN pain 1st line? â Pregabalin/duloxetine
- Charcot foot? â Neuroarthropathy of foot
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