A patient with breathing problems is given a muscle relaxant. As soon as he star

Question

A patient with breathing problems is given a muscle relaxant. As soon as he starts taking the drug, he begins to experience bronchospasms, a symptom that may eventually lead to an asthmatic attack. This can be attributed to the release of:

Select one:

a. acetylcholine.

b. norepinephrine.

c. serotonin.

d. histamine.

The somatic nerves are the branches of the cranial and spinal motor nerves that:

Select one:

a. innervate skeletal muscle.

b. are not under one’s voluntary control.

c. are regulated by the hypothalamus and the medulla oblongata.

d. innervate the cardiac muscles and the smooth muscles of the internal organs and glands.

An increase in blood pressure is associated with a(n):

Select one:

a. decrease in sympathetic activity.

b. increase in parasympathetic activity.

c. decrease in parasympathetic activity.

d. increase in sympathetic activity.

Which of the following spasmolytics is primarily used as a tranquilizer?

Select one:

a. Succinylcholine

b. Pancuronium bromide

c. Dantrolene

d. Diazepam

The binding of the neurotransmitter acetylcholine to the nicotinic-muscle receptors at the neuromuscular junction enables:

Select one:

a. potassium ions to move into the cells.

b. sodium ions to move out of the cells.

c. sodium ions to move into the cells.

d. magnesium ions to enter the cells.

In the context of local anesthetics, which of the following statements best explains potency?

Select one:

a. Potency is the ability to increase velocity of nerve conduction.

b. Potency is the ability to produce a nerve block at a relatively low dose.

c. Potency is the ability to produce a heightened conduction of nerve impulses.

d. None of the above are correct.

Which of the following is an advantage of using cocaine in surgical procedures?

Select one:

a. It causes significant hypotension.

b. It increases the dilation of blood vessels.

c. It decrease operative bleeding.

d. It relaxes vascular smooth muscle.

_____ can be safely used in asthmatic patients, and depresses reflexes associated with coughing.

Select one:

a. Propofol

b. Methohexital

c. Midazolam

d. Ketamine

A doctor is scheduled to perform an endoscopic procedure on a child. The anesthetic should have a rapid onset of action as the child is agitated. Which of the following anesthetics is the best choice in this scenario?

Select one:

a. Midazolam

b. Diazepam

c. Propofol

d. Methohexital

Explanation / Answer

Q1- option D

Q2- option A

Q3- option C

Q4- option B

Q5- option A

Q6- option D

Q7- option C

Q8- option B

Q9- option D

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