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Table 1 Laboratory parameters

From: An unusual case of central diabetes insipidus & hyperglycemic hyperosmolar state following cardiorespiratory arrest

Test Emergency room Day 1 Day 2 Day 3
    0600 hours 1500 hours After IV fluids After desmospressin
Glucose (mmol/L) 6.7 “Hi” on CBG “Hi” on CBG 54.7 9.2  
Sodium (mmol/L) 146 165 170 175 164 140
Potassium (mmol/L) 2.0 3.9 2.4 2.8 4.7 5.3
Chloride (mmol/L) 108 130 145   143  
Bircarbonate (mmol/L) 23.8 20.7 19.7   17.7  
Serum Osmolality (mmol/Kg)      337 294
Urine Osmolality (mmol/Kg)      141 382
Spot Urine Na (mmol/L)      52 136
BUN (mmol/L) 7.8 9.6 10.7 2.5  
Creatinine (μmol/L) 70.7 88.4 97.2 44.2  
Calcium (mmol/L) 2.75 2.92   2.20  
Total Intake (Liters per 24 hours)   0.6 (Only 3 hours) 8.7 18.8  
Urine output (Liters per 24 hours)   1.5 (Only 3 hours) 6.7 7.2