Chapter 04: Psychobiologic Bases of Behavior

Chapter 04: Psychobiologic Bases of Behavior

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

MULTIPLE CHOICE

 

1. When a nurse administers an anticholinergic drug, it is important to assess for symptoms associated with inhibition of:

a.	spinal nerve function.
b.	the central nervous system.
c.	the sympathetic nervous system.
d.	the parasympathetic nervous system.

 

 

ANS:  D

Drugs with anticholinergic properties block parasympathetic function of certain cranial nerves, resulting in dilated pupils, decreased tearing, dry mouth, tachycardia, and a slowed gastrointestinal system. Anticholinergics do not affect spinal nerve function or function associated with the central or sympathetic nervous systems.

 

DIF:    Cognitive level: Understanding        REF:   p. 43

TOP:   Nursing process: Assessment           MSC:  NCLEX: Physiologic Integrity

 

2. A patient denies hunger despite ingesting fewer than 400 calories daily. The patient’s problem might be associated with dysfunction of which structure?

a.	Parietal lobe
b.	Hypothalamus
c.	Medulla oblongata
d.	Reticular activating system

 

 

ANS:  B

Research has shown that the hypothalamus is involved with eating and satiety, so dysfunction might be a factor in anorexia nervosa. Research has not implicated any of the other brain structures listed in anorexia nervosa.

 

DIF:    Cognitive level: Understanding        REF:   p. 38

TOP:   Nursing process: Assessment           MSC:  NCLEX: Physiologic Integrity

 

3. A patient is recovering from surgery to remove a tumor in the cerebellum. Which assessment finding is most attributable to this diagnosis?

a.	The patient complains of limited taste and smell.
b.	The patient demonstrates poor balance and coordination.
c.	The patient has limited ability to learn and poor memory.
d.	The patient has poor emotional control and low motivation.

 

 

ANS:  B

The cerebellum coordinates muscle synergy and is responsible for the maintenance of equilibrium. The limbic system plays a role in taste, smell, memory, learning, emotional control, and motivation.

 

DIF:    Cognitive level: Understanding        REF:   p. 42

TOP:   Nursing process: Assessment           MSC:  NCLEX: Physiologic Integrity

 

4. The nurse plans discharge teaching for a patient who experienced a stroke involving the hippocampus. The nurse should adapt the teaching plan to account for possible problems with:

a.	visual acuity.
b.	expressive aphasia.
c.	short-term memory.
d.	balance and coordination.

 

 

ANS:  C

The limbic system is crucial to memory. Damage to the hippocampus, a part of the limbic system, causes problems converting short-term to long-term memory, making learning difficult. Aphasia is a temporal lobe problem. Blindness is an occipital lobe problem. Balance and coordination are affected by damage to the cerebellum.

 

DIF:    Cognitive level: Understanding        REF:   p. 38               TOP:   Nursing process: Planning

MSC:  NCLEX: Physiologic Integrity

 

5. A patient diagnosed with split-brain syndrome has damage to which structure of the brain?

a.	Amygdala
b.	Hippocampus
c.	Pyramidal tract
d.	Corpus callosum

 

 

ANS:  D

The corpus callosum connects the two brain hemispheres. When this communication pathway is severed, split-brain syndrome develops. None of the other structures is implicated in this disorder.

 

DIF:    Cognitive level: Understanding        REF:   p. 35

TOP:   Nursing process: Assessment           MSC:  NCLEX: Physiologic Integrity