Nokea
The students demonstrate understanding of the information when they identify that which type of receptor is involved with stimulating smooth muscle in the parasympathetic nervous system?
- A. Nicotinic
- B. Muscarinic
- C. Alpha
- D. Beta
Correct Answer: B
Rationale: There are two types of receptors in the parasympathetic nervous branch: muscarinic receptors (which stimulate smooth muscle) and nicotinic receptors (which stimulate skeletal muscle). Alpha and beta receptors are found in the sympathetic nervous system.
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Based on the nurse's understanding of which body systems are affected by cholinergic drug adverse reactions, the nurse would be alert for adverse reactions involving which body system?
- A. Endocrine
- B. Circulatory
- C. Respiratory
- D. Gastrointestinal
- E. Central nervous
Correct Answer: B,C,D,E
Rationale: Cholinergic drug adverse reactions affect the circulatory, respiratory, gastrointestinal, and central nervous systems.
When teaching the client about this drug, which of the following would the nurse include as a possible adverse reaction?
- A. Constipation
- B. Nausea
- C. Dry mouth
- D. Skin flushing
- E. Muscle rigidity
Correct Answer: B,D
Rationale: Pyridostigmine is an oral cholinergic medication used in the treatment of myasthenia gravis. General adverse reactions associated with oral administration include nausea, diarrhea, abdominal cramping, salivation, skin flushing, cardiac arrhythmias, and muscle weakness.
After teaching a group of nursing students about the parasympathetic nervous system, the instructor determines that the teaching was successful when the students identify which of the following as an action?
- A. Decreased salivary gland production
- B. Vasodilation
- C. Increased peristalsis
- D. Bronchodilation
- E. Pupillary constriction
Correct Answer: B,C,E
Rationale: Stimulation of the parasympathetic nervous system results in the opposite reactions to those triggered by the adrenergic system: blood vessels dilate, sending blood to the gastrointestinal (GI) tract; secretions and peristalsis are activated and salivary glands increase production; the heart slows and pulmonary bronchioles constrict; the smooth muscle of the bladder contracts; and the pupils of the eyes constrict.
After teaching a group of nursing students about cholinergic drugs, the instructor determines a need for additional teaching when the students identify which drug as being administered orally?
- A. Ambenonium
- B. Bethanechol
- C. Pyndostigmine
- D. Edrophonium
Correct Answer: D
Rationale: Edrophonium is a cholinergic drug that is administered intravenously. Ambenonium, bethanechol, and pyridostigmine are administered orally.
The nurse administers a prescribed oral dose of bethanechol to a client with urinary retention at 9:30 a.m. The nurse would notify the primary health care provider if the client has not voided by which time?
- A. 9:45 a.m.
- B. 10 a.m.
- C. 10:30 a.m.
- D. 11 a.m.
Correct Answer: D
Rationale: When bethanechol is administered orally, the client should void within 30 to 90 minutes. Therefore, if the client has not yet voided by 11 a.m., the nurse should notify the primary health care provider.