A 43 year old female presents with generalized weakness and pain. She has a history of an eating disorder.

On examination, she is pale looking with generalized muscle tenderness and inability to walk.

Vitals:

BP 100/70

PR 100/min

Describe and interpret her blood results

Na   142   (134-146 mmol/l)

K   1.5   (3.3-5 mmol/l)

Cl  110  (95-105  mmol/l)

HCO3    16   (24 mmol/l)

Urea  2.8  (3-8  mmol/l)

Creat  57   (30-100  umol/l)

Ca   2.21   (2.2-2.55 mmol/l)

CK  13162  U/L

How would you treat her?