The pharmacology instructor is discussing nondepolarizing neuromuscular junction blockers (NMJ) blockers with the nursing class. How would the instructor explain the action of nondepolarizing NMJ blockers?
A) Blocks acetylcholine (ACh) from acting
B) Acts like ACh then prevents repolarization
C) Takes the place of ACh in the depolarizing/repolarizing process
D) Stops depolarization in the axion
B
Feedback:
Depolarizing NMJ blockers cause muscle paralysis by acting like ACh. They excite (depolarize) the muscle and prevent repolarization and further stimulation. Options A, C, and D are incorrect.
You might also like to view...
The nurses are preparing the healthcare facility for clients injured in an explosion. While understanding the characteristics of explosives, what would be the focus of the facility?
A) Preparing the operating room B) Arranging a temporary morgue C) Mobilizing supplies to the emergency department D) Contacting law enforcement for crowd control
The nurse is caring for a patient with chronic hepatitis B who is being treated with adefovir (Hepsera). Which of the following findings would indicate that this medication is appropriate for this patient?
a. Human immunodeficiency virus (HIV) infection and a low CD4 count b. Renal insufficiency on dialysis c. No clinical or laboratory evidence of HIV infection d. Allergy to purine nucleoside analogues
A patient who was admitted in hypertensive crisis in now normotensive. The nurse notes the patient's output from the indwelling urinary catheter has been 15 mL over the last hour and was 20 mL the previous hour. What nursing intervention is necessary?
1. Assess the patient for development of stroke findings. 2. Discuss these findings with the primary care provider. 3. Increase the patient's intravenous fluid rate. 4. Irrigate the patient's indwelling urinary catheter.
A nursing instructor is teaching a student nurse about the best methods to use when teaching an auditory learner. The student nurse demonstrates understanding when stating:
1. "An auditory learner learns best by doing." 2. "An auditory learner learns best by seeing." 3. "An auditory learner learns best by reading." 4. "An auditory learner learns best by listening."