betterman74

betterman74 t1_j2e8zgg wrote on December 31, 2022 at 4:47 PM

Reply to ELI5: What’s the difference between a headache, migraine and thunderclap headache? by Training_Repair_3672

Thunderclap headache equals bleed (usually subarachnoid bleed) until proven otherwise (I'm a Dr).

betterman74 t1_iy87x5t wrote on November 29, 2022 at 2:10 PM

Reply to Eli5, how do contracted Blood Vessels lead to Increased Cardiac Preload? by WebW3b

Turns a low pressure low volume system into a high pressure high volume system. Delivering more blood (preload) therefore hopefully (if EF preserved) increased cardiac output etc. I agree it's a bit tough sometimes to get it right in the head. Brings back days as a cardiothoracic jnr Dr.