Chapter 13: Physiology of the Peripheral Nervous System

Chapter 13: Physiology of the Peripheral Nervous System

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

1. A nurse is reviewing medications prior to the administration of the morning medications. The nurse understands that the reason a patient is being treated with a beta₁ agonist is that the patient has

a.	a blood pressure of 90/40.
b.	a heart rate of 102.
c.	a blood pressure of 176/90.
d.	vasodilation of the bronchi.

 

 

ANS:   A

A beta₁ agonist increases the patient’s heart rate and blood pressure.

A beta₁ agonist increases the patient’s heart rate and would not be indicated for a patient with a heart rate of 102/minute.

A beta₁ agonist is not indicated for high blood pressure, because it would further elevate it and put the patient at risk for hypertensive crisis.

A beta₁ agonist does not affect the lungs and therefore would not be indicated for a patient with vasodilation of the bronchi.

 

DIF:    Cognitive Level: Application             REF:    pp. 114-115

TOP:    Nursing Process: Diagnosis

MSC:   NCLEX Client Needs Category: Physiological Integrity: Pharmacological and Parenteral Therapies

 

2. A nurse is discussing the functions of the sympathetic nervous system with a group of nursing students. Which statement made by one of the students indicates a need for further teaching?

a.	“The sympathetic nervous system regulates the digestive functions of the body.”
b.	“The sympathetic nervous system regulates the cardiovascular system.”
c.	“The sympathetic nervous system implements the fight-or-flight response.”
d.	“The sympathetic nervous system regulates body temperature.”

 

 

ANS:   A

The sympathetic nervous system does not regulate digestive functions of the body, the autonomic nervous system does; there is a need for further education.

The sympathetic nervous system does regulate the cardiovascular system; no further education is needed.

The sympathetic nervous system does implement the fight-or-flight response; no further education is needed.

The sympathetic nervous system does regulate the body temperature; no further education is needed.

 

DIF:    Cognitive Level: Analysis                  REF:    pp. 107-108

TOP:    Nursing Process: Diagnosis

MSC:   NCLEX Client Needs Category: Physiological Integrity: Pharmacological and Parenteral Therapies

 

3. A patient is brought to the emergency department by friends, who state that the patient was in a bar fight and got stabbed in the leg about 15 minutes ago. The nurse would anticipate that the body would respond by a(n)

a.	increase in serum glucose.
b.	decrease in serum glucose.
c.	heart rate of 72/minute.
d.	respirations of 16/minute.

 

 

ANS:   A

The body responds to a traumatic injury by increasing glucose in the fight-or-flight situation.

The body responds to the fight-or-flight situation by increasing glucose, not decreasing glucose.

After a traumatic injury, the sympathetic nervous system would be stimulated, which would cause an increase in the heart rate, not a decrease.

After a traumatic injury, the sympathetic nervous system would be stimulated, which would cause an increase in respirations, above the normal 12 to 16 breaths/minute.

 

DIF:    Cognitive Level: Comprehension      REF:    pp. 113-114

TOP:    Nursing Process: Assessment

MSC:   NCLEX Client Needs Category: Physiological Integrity: Pharmacological and Parenteral Therapies