Question

question 49
which of the following may indicate excessive resistance in the arteries?
the first korotkoff sound
a persistently high pulse pressure at or above 100 mm hg
a weak pulse
a mean arterial pressure below 60 mm hg for an extended time

Explanation:

Korotkoff sounds are used to measure blood pressure. The first Korotkoff sound indicates systolic blood pressure. A persistently high pulse pressure (pulse pressure = systolic - diastolic) at or above 100 mmHg can be a sign of increased arterial stiffness (which is related to excessive arterial resistance). A weak pulse may be due to low - volume states (like dehydration, hemorrhage) rather than high arterial resistance. A mean arterial pressure (MAP) below 60 mmHg for an extended time is more related to inadequate tissue perfusion (as MAP = (2 * diastolic+ systolic)/3) rather than excessive arterial resistance.

Answer:

A persistently high pulse pressure at or above 100 mm Hg