NDH ICU DDAVP-HTS

Updated: 23 January 2023

Profound disturbances of other electrolytes

hypoK

  • may lead to nephrogenic DI if severe
  • replace with IV if possible for its reliability

Hypophosphataemia

  • hypoPO4 is a risk factor of ODS
  • Proactively start thiamine (esp. in alcoholics)
  • Replacing PO4 doesn’t per se affect [Na]. It is the coupling Na/K that counts

Preparation

Approximate 3% HTS equivalent

K

IV KCl 10mmol in 100ml D5 (=100mM)

No need HTS adjustment

IV KCl 20mmol in 100ml D5 (=200mM)

25ml

PO KCl syrup 2g (approx. 50mmol K)

100ml

PO4

PO Sodium phosphate 20ml

10ml

IV potassium phosphate 10ml in 100ml D5

40ml

IV glycophos 10ml in 100ml D5 (=100mM)

No need HTS adjustment

Na

PO NaCl tab 900mg

30ml