Diferencia entre revisiones de «Hypocalcemia»

Sin resumen de edición
Línea 6: Línea 6:
**Corrected Ca = (0.8 * (Normal Alb - Pt's Alb)) + Serum Ca
**Corrected Ca = (0.8 * (Normal Alb - Pt's Alb)) + Serum Ca


==Diagnosis==
==Clinical Features==
#Paresthesias (mouth, fingertips)
#Paresthesias (mouth, fingertips)
#Incr DTRs
#Incr DTRs
Línea 12: Línea 12:
#Weakness
#Weakness
#Confusion
#Confusion
#Sz
#Seizurez
#Chvostek/Trousseau
#Chvostek/Trousseau
==Diagnosis==
#ECG
#ECG
##QT prolongation
##QT prolongation
Línea 38: Línea 40:


==Treatment==
==Treatment==
*Be careful in dig pts
*Be careful in digoxin pts
 
#Asymptomatic
#Asymptomatic
##Calcium gluconate 1 gm PO Q6hrs
##Calcium gluconate 1 gm PO Q6hrs
Línea 45: Línea 46:
#Symptomatic
#Symptomatic
##Calcium gluconate/chloride 10mL of 10% soln IV over 10min
##Calcium gluconate/chloride 10mL of 10% soln IV over 10min
*Correct hypomag at same time (otherwise PTH is inhibited)
*Correct hypomag at same time (otherwise PTH is inhibited)


==Source ==
==Source ==
2/12/06 DONALDSON (adapted from Tintinalli)
*Tintinalli


[[Category:FEN]]
[[Category:FEN]]

Revisión del 20:44 2 mar 2012

Background

  • Low <8.5 (<2.0 ionized)
  • Low! <6.5 (<1.5 ionized)
  • Correct for hypoalbumimia
    • Corrected Ca = (0.8 * (Normal Alb - Pt's Alb)) + Serum Ca

Clinical Features

  1. Paresthesias (mouth, fingertips)
  2. Incr DTRs
  3. Cramps
  4. Weakness
  5. Confusion
  6. Seizurez
  7. Chvostek/Trousseau

Diagnosis

  1. ECG
    1. QT prolongation

DDX

  1. Misc
    1. Shock
    2. Sepsis
    3. Pancreatitis
    4. Hypomag
    5. Rhabdo (phosphate overload)
  2. Decreased absorption
    1. Vit D def
  3. Increased excretion
    1. Alcoholism
    2. Renal failure
    3. Diuretics
  4. Endocrine
    1. Hypoparathyroidism
  5. Drugs
    1. Cimetidine
    2. Phenytoin
    3. Lasix

Treatment

  • Be careful in digoxin pts
  1. Asymptomatic
    1. Calcium gluconate 1 gm PO Q6hrs
    2. Vitamin D (calcitriol) 0.2 mcg BID
  2. Symptomatic
    1. Calcium gluconate/chloride 10mL of 10% soln IV over 10min
  • Correct hypomag at same time (otherwise PTH is inhibited)

Source

  • Tintinalli