sodium nitroprusside caused similar increases in resting cardiac output but in subclinical hypothyroidism this resulted from a large increase in heart rate ( 26 +/- 4 beats/min ) and reduction in stroke volume ( 11 +/- 4 per cent ) whereas in the euthyroid state , the heart rate increment was less ( 14 +/- beats/min ) and stroke volume was unchanged .
C0037533
sodium nitroprusside
C0085128
increases