Pressure should be firm enough to press the pad into the skin, but not so tight as to block circulation.

"Cut the fabric so it doesn't block circulation."

In the arterial system, bubbles (arterial gas embolism) are far more dangerous because they block circulation and cause infarction (tissue death, due to local loss of blood flow).

With no major continents to block circulation, the rapidly moving currents from the equatorial regions quickly melted any incipient floes.

The stumbling block with perfluorocarbons is that they form globules in plasma that can block circulation as fatally as blood clots.

These clots can block circulation to part of the brain, causing a stroke.

The clots in his feet had blocked circulation.

Rogers attributes that to surgery in 2001 to remove a rib that had blocked circulation through an artery and a vein when he raised his arm to throw.

Does abnormal clotting threaten to block circulation?

A cord prolapse is an obstetrical emergency, as the descending head may block fetal-placental circulation.