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The syndrome of inappropriate secretion of ADH SIADH is associated with
A Water retention
B Low to normal plasma urea
C creatinine and uric acid
D Benign and malignant intrathoracic lesion
E Hypernatremia
F Urine sodium concentration is low
SIADH is characterized by:
A Low serum uric acid
B High fractional excretion of sodium
C Urine osmolarity<100 mosmol/kg
D Raised blood urea
E Urine sodium excretion>40 mEq/L
Antidiuretic hormone (ADH) secretion is
A Inhibited by expansion of right atrium
B Increased in dehydration
C Stimulated by plasma hyperosmolarity
D Stimulated by alcohol
E Stimulated by increased blood pressure
Secretion of ADH is decreased by
A Stretching of right atrial stretch receptor
B An increase in blood volume
C Alcohol
D Angiotensin II
E An increase in plasma osmolarity
Which of the following drugs may cause SIADH?
A Cisplatin
B Tricyclic antidepressant
C Alpha lipoic acid
D Carbimazoie
E Desmopressin
Causes of SIADH are
A Carcinoid tumour
B COPD
C Guillian-Barre syndrome
D Hyperprolactinemia
E SLE
SIADH causes reduction in
A Plasma sodium concentration
B Plasma osmolality
C Arterial blood pressure
D Urinary sodium concentration
E Aldosterone secretion
Following are the biochemical features of SIADH
A Hyponatremia
B Hypochloremia
C Increased plasma vasopressin
D Decreased urine osmolality
E Increased anion gap
Features of SIADH are
A Low plasma sodium concentration
B High plasma osmolality
C Urine osmolality > 150 mmol/L
D Urine sodium concentration < 30 mmol/L
E Raised plasma uric acid
Characteristics features of SIADH include
A Increased urinary sodium
B Increased urinary specific gravity
C Increased urinary output
D Static body weight
E Decreased urinary osmolality

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