Conference notes 9/3

Padget

Alcoholic ketoacidosis

Presents; n, v, dehydration, ams

Suspect in poor po + alcoholism

Alcohol increases NADH/NAD+ = higher ketones and lactic acidosis

  • Malnutrition presents compensation
  • p/w other metabolic derangements

Dx overlaps to some degree w starvation ketosis, DKA

  • Correlate clinically

Tx

  • Thiamine  (WK)
  • Fluids
  • D5LR preferred, thiamine before
  • Can treat glucose >250 w insulin
  • Supportive care otherwise
  • Beware CIWA

If lactic >4 something else going on

Disposition; resolution in symptoms, acidosis = home

Rizzo; small group 

Case 1 – HyperK

  • Ddx; medicines, renal disease, diet, rhabdo
  • Ekg changes, spectrum, peaked t wave – prolonged qrs – sinusoidal 
  • Tx, insulin, glucose, Ca, lasiks, albuterol, fluids, dialysis
    • Ca
      • Gluconate through PIV
      • Chloride in codes, central lines
    • Dialysis
      • K refractory to treatments

Case 2 – HypoK

  • Ekg changes – U waves
  • Ddx; diet, DM, GI loss, medicines
  • Tx;
    • Mg, repletion
    • K repletion
      • 10meq = .1 increase

Case 3 – HypoNa

  • Ddx; Polydipsia, SIADH, polypharm, CKD, aldosterone deficiency
  • Tx; Replete w hypertonic 150mg / 10-20min
    • Can use x2-3 amps bicarb 
  • <120 = ICU
  • Don’t correct too quickly

Case 4 – HyperCa

  • Ddx; exogenous, PTH, genetic disorder, bone resorption, addison, pagets, malignancy, polypharm
  • Tx; Fluids, supportive, Ca binders, bisphos, dialysis
  • EKG changes = osborne J wave, shortened QT

Case 5 – HypoMg

  • Ddx; malnutrition, alcohol, gi loss, renal loss
  • Ekg changes – prolonged qtc, risk for ventricular arrhythmia
  • Tx; replete
    • Beware of rapid infusion – respiratory depression, hyporeflexia, hypotension

Ross; Small group

Case 1 – thyroid storms

  • Precipitant; trauma, infection, contrast, medicines
  • Burch and Wartofsky score to sound smart to endocrinology 
  • Tx
    • Ptu vs methimazole (avoid in 1st trimester pregnancy)
    • Propranolol vs esmolol (beta selective)
    • Iodine, can substitute Li if allergic
    • Steroid
    • Cholestyramine
  • Avoid, amio, asa

Hashimoto – low thyroid

Exogenous – dont need ptu, methimazole

Case 2 – HTN emergency (pheo)

  • Ddx; pheochromocytoma, substance use, idiopathic, kidney disease, carcinoid, angina
  • If pheo/cocaine avoid beta blockade
  • Plasma metanephrines for pheo, urine catacholamines
  • Tx;
    • Phentolamine
    • Oral doxazosin if stable
    • Cardine
    • Nitroprusside
  • Imaging – CT scan w adrenal protocol
  • Associated w MEN2, neurofibromatosis, von hippel lindau
  • Reglan, TCA, steroids can exacerbate
  • Common sx; palpitation, diaphoresis, HA

Case 3 – Myxedema coma

  • Ddx; hypothermia, sepsis, chf, trauma, renal
  • Tx;
    • Levothyroxine, consider T3 too (if TSH> 10)
      • T4 preferred in old people, significant CAD
    • Hydrocortisone if c/f concomitant adrenal insufficiency
    • Passive rewarm
    • Beware of pericardial effusion – low voltage ekg
      • Get an echo

Bequer/Baker; US

Fascia Iliaca Block

Blocks femoral/obturator/lateral cutaneous nerves

Indications 

  •  femoral head/neck/trochanter fractures
  • Anterior thigh lac/abscess

Careful on anticoagulated pts

Ropivicaine/bupivicaine preferred (longer acting)

Use linear probe

2 person procedure

  • X2 syringe
  • Threeway stopcock

Enter laterally between fascial planes