Profound Hypokalaemia Resulting in Maternal Cardiac Arrest: A Catastrophic Complication of Hyperemesis Gravidarum?

Table 1

Serum electrolytes.

	Pre-pregnancy	On Admission	On discharge from hospital
Potassium K^+ (mmol/L) range 3.5-5.2	3.8	2.1	3.9
Magnesium Mg^2+ (mmol/L) range 0.75-1.1	0.89	1.25	0.82
Phosphate (mmol/L) range 0.75-1.50	1.32	4.95	1.27