A Nonfunctioning Pituitary Macroadenoma Presenting as Cyclical Vomiting and Severe Hyponatremia in a Young Female

Table 1

Summary of blood and urine investigation findings.

Name of the investigation	Value	Name of the investigation	Value
White cell count	6000 cells/mm3	Serum creatinine	44.9 µmol/L
Neutrophil	81%	PH	7.481
Lymphocyte	16%	PCO2	24 mmHg
Haemoglobin	12.3 g/dl	PO2	125 mmHg
Platelet	244 000/mm3	Bicarbonate level	17 mmol/L
		Blood urea	14 mg/dl
Serum sodium	110 mmol/L (136–145 mmol/L)
Serum potassium	3.2 mmol/L (3.5–5.3 mmol/L)	Her random serum cortisol level	105 nmol/l
Serum chloride	74 mmol/L (97–111 mmol/L)	TSH	0.209 µIU/ml (0.55–4.78 µIU/ml)
Plasma osmolality	223 mOsm/kg	T3 level	1.32 pg/ml (2.30–4.20 pg/ml)
Urine osmolality	266 mOsm/kg	T4 level	0.98 ng/dl (0.93–1.7 ng/dl).
Urine sodium	14 mmol/L	LH level	0.4 mIU/ml
Urine potassium	5.3 mmol/L	FSH level	1.4 mIU/ml
Urine chloride	24 mmol/L	Serum prolactin level	81 ng/ml (nonpregnant range, 2.–29.2 ng/ml)
		Serum prolactin level (5 : 1 dilution)	90.8 ng/ml.
Alanine transaminase	23.4 U/l (7–35 U/l)	Total serum beta HCG	<2 mIU/ml (<10)
Aspartate transaminase	20.3 U/l (0–31 U/l)
Alkaline phosphatase	68.2 U/l (30–120 U/l)	Urine full report	Normal
Total protein	6.5 g/dl (6–8 g/dl)
Serum albumin	4.1 g/dl (3.7-5 g/dl)
Adjusted calcium	8.7 mg/dl (8.6–10 mg/dl)
Serum magnesium	0.9 mmol/L (0.7–1 mmol/l)
Serum inorganic phosphorous	3 mg/dl (2.7–4.5 mg/dl)
Serum amylase	32 U/l (30–110 U/l)
C-reactive protein	5 mg/l
ESR	10 mm