Chapter 25 Muscle Relaxants

A patient who is receiving chlorzoxazone reports that his urine is somewhat orange in color. Which response by the nurse would be the most appropriate?

"This discoloration sometimes occurs with this drug"

What adverse effects would a nurse more likely assess in a patient who is receiving a centrally acting skeletal muscle relaxant?

-Drowsiness -Dry mouth -Insomnia -Constipation

What centrally acting skeletal muscle relaxant could the nurse administer IV?

Orphenadrine (Banflex)

A nurse is preparing a teaching plan for a patient who is to receive botulinum toxin type A for frown lines. What adverse effects would the nurse inform the patient could occur?

-Respiratory infection -Headache -Drooping eyelids

The nurse reviews the patient's medical record before administering dantrolene. What factors would the nurse identify as placing the patient at risk for hepatocellular injury?

-She is 38 years old -She takes birth control pills containing estrogen

A patient receives baclofen intrathecally at 8 A.M. The nurse would expect teh drug to peak at what time?

12 P.M.

A patient receives dantrolene via the oral route at 10 A.M. The nurse would expect the duration of action to extend until what time?

8 P.M.

A patient with spinal cord injury is experiencing muscle spasticity. Which agent would most likely be ordered?

Baclofen

The nurse is caring for a patient with an intrathecal catheter in place to treat muscle rigidity. What centrally acting skeletal muscle relaxant could the nurse administer intrathecally?

Baclofen

What centrally acting skeletal muscle relaxant is not metabolized but is excreted in the urine?

Baclofen

After teaching a group of student about skeletal muscle relaxants, the instructor determines a need for additional teaching when the students identify what as a centrally acting skeletal muscle relaxant?

Botulinum toxin type A

An older adult patient with a history of renal dysfunction is to receive a centrally acting skeletal muscle relaxant. Which agent would be most appropriate?

Carisoprodol

A patient sustained a musculoskeletal injury to his left leg. What would the nurse expect the health care provider to order?

Cyclobenzaprine

The nurse is assessing a patient for possible risk factors for the development of hepatotoxicity with the use of dantrolene. What situations would the nurse identify as requiring cautious use?

Female gender

Muscle spasticity is the result of damage to peripheral structures rather than to injured neurons.

False

The pyramidal tract is located primarily within the basal ganglia.

False

A patient comes to a clinic for a botox injection around his eyes. While collecting admission assessment data, the nurse learns that the patient is taking a polymyxin antibiotic for a skin infection involving the eyes. What is the nurse's priority action?

Hold the injection and consult the provider

What teaching points would a nurse include when describing the action of tizandine to peers?

Inhibition of presynaptic motor neurons in the CNS

What agent would the nurse identify as also being used to treat tetanus?

Methocarbamol

What is responsible for controlling precise intentional movement?

Pyramidal tract

When reviewing the medical record of a patient who is to receive dantrolene, which condition would alert the nurse to the need for close monitoring?

Respiratory depression

What would be a contraindication for the use of a methocarbamol?

Spasm due to rheumatoid arthritis

Centrally acting skeletal muscle relaxants lyse or destroy the spasm.

True

Muscle spasms are thought to arise from the floor of sensory impulses coming to the spinal cord from an injured area.

True

Spinal reflexes are the simplest nerve pathways that monitor movement and posture.

True