A client periodically has acute panic attacks. These attacks are unpredictable and have no apparent association with a specific object or situation. During an acute panic attack, the client may experience:
a. a decreased heart rate.
b. a decreased respiratory rate.
c. a decreased perceptual field. (x)
d. heightened concentration.

B

Explanation:

Acute panic attacks are usually extreme period of fear and includes fast heartbeat rate, sweating and low breath. They are usually caused by nothing in particular and studies says it is hereditary.

The palpitation is a result of increased heart rate in which the heart beats faster.

The decreased respiratory rate causes the shortness of breath when this usually happens.

d. groundwater flows through the subsoil and deposits minerals.

when it is at an intermediate population density