Postural Hypotension

Postural hypotension is a transient fall in hypotension which causes symptoms when a patient moves from sitting to standing. Physiology Moment to moment, blood pressure is controlled by the vasovagal reflex system. This maintains...

More

Potassium

The Basics 98% is intracellular Serum range 3.5 – 5 mmol/L K+ and H+ tend to vary together Most body secretion is in urine – from distal tubules Shifts K+ INSIDE cells Insulin Aldosterone...

More

Proximal Tubule Diuretics

Proximal tubule diuretics e.g. acetazolidamide These drugs are carbonic anyhrdrase blockers. Some sodium is reabsorbed in conjunction with hydrogen. This process relies on the carbonic anhydrase to catalyse the reaction of hydrogen with bicarbonate...

More