• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/33

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

33 Cards in this Set

  • Front
  • Back
depolarizing neuro muscular junction
succinylcholine
Area on the muscle cell membrane where ACh reacts with a specific receptor site to cause stimulation of the muscle in response to nerve activity
acetylcholine receptor site
stimulation of a muscle cell causing it to contract with no allowance for reploarization and restimulation of the muscle characterized by contraction then paralysis
Depolarizing NMJ
The synapse between a nerve and a muscle cell
neuromuscular junction
reaction to some NMJ drugs in susceptible individuals characterized by extreme muscle rigitiy seve hyperpyrexia acidosis and in some cases death
malignant hyperthermia
No stimulation or depolarization of the muscle cell prevents depolarization and stumulation by blocking the effects of ACh
Nondepolarizing NMJ blocker
Lack of muscle function
paralysis
Functional unit of a muscle cell composed of actin and myosin molecules arranged in layers to give the unit a striped or striated appearance
SARCOMERE
THEORY EXPLAINING MUSCLE CONTACTION AS A REACTION OF ACTIN AND MYOSIN MOLECULES WHEN THEY ARE FREED TO REACT BY THE INACTIVATION OF TROPONIN AFTER CALCIUM IS ALLOWED TO ENTER THE CELL DURING DEPOLARIZATION
SLIDING FILAMENT THEORY
CHEMICAL USED TO COMMUNICATE BETWEEN NERVES AND MUSCLES
ACh
a FAMILY OF ENZYMES THAT CATALYZE THE HYDROLYSIS OF THE NEUROTRANSMITTER ACh
CHOLINESTERASE
NAME NON DEPOLARIZING NEUROMUSCULAR JUNCTION
ATRACURIUM
CISATRACURIUM
PANCURONIUM
ROCURONIUM
VECURONIUM
inhibits nerve actvity and is important in preventing over excitability or stimulation such as seizure activity.
Gamma Aminobutyruc acid (GABA)
non depolarizing act as antagonist to ACh at the NMJ and precent Depolarizing (ACTION) of muscle cells
Non depolarizing (REST)
Act as and ACh agonist causing stimulation of the muscle cel and preventing it from repolarizing
Depolarizing (ACTION)
A patient receives pancuronium. The nurse would expect the patient to feel the effects of the drug for which duration?
120 to 180 minutes
After teaching a group of students about NJM blockers, the instructor determines that the teaching was successful when the students identify which of the following as an example of a nondepolarizing NMJ blocker? Select all that apply.
• Vecuronium
• Pancuronium
• Cisatracurium
A patient that has a history of glaucoma is to receive a NMJ blocker. Which agent would the nurse identify as being most problematic for this patient?
Succinylcholine
When describing the sliding filament theory, which of the following would an instructor include?
Calcium combines with tropinin
When nondepolarizing NMJ blockers are given, histamine is also released causing wheezing and bronchospasm. t/f
True
A 71-year-old patient with a history of depression will be receiving vecuronium to prevent trauma during electroconvulsive therapy. Prior to the procedure, the care team must assess the patient's
renal and hepatic status.
A patient will be undergoing surgery, during which the anesthesiologist plans to administer vecuronium. The nurse will recognize that the administration of this drug creates a need for
mechanical ventilation
When assessing a patient who has received a nondepolarizing NMJ blocker, the nurse determines that the patient is experiencing excessive effects of the drug. Which of the following would the nurse expect to be used?
Cholinesterase inhibitor
Which neuromuscular blocking agent would a nurse expect to have the shortest duration of action?
Succinylcholine
Which of the following would a nurse expect to administer to a patient who is experiencing muscle pain related to the use of succinylcholine?
Aspirin
only depolarizing blocking drug with a half life of 6 min reaction time of 30-60 seconds
succinylcholine
used in adjunct to anethetics during sugery relaxes smooth mnuscle helps facility mechanical intubation prevents resistance to the resporator used to realign broken bnes used to faviityate electroconvulsive therapy reducests the intensity of spasm in undiced seizures
Neuromuscular junction blocking agents
contraindicated in Alaskan eskimoes due to lower cholinesterase level than any other ethnicity
Neuromuscular junction blocking agents
calcium channel blockers _____NMJ blocking agents
potentiate
3 MAIN USES FOR NEUROMUSCULAR BLOCKLING DRUGS THAT RELAX SKELTAL MUSCLES BY DISRUPTING THE TRANSMISSION OF NERVE IMPULSES AT THE MOTOR END PLATE. THE BRANCHING THE HAVE 3 MAJOR CLINICAL USES?
TO RELAX SKELTAL MUSCLES DURING SURGERY 2 TO REDUCE THE INTENSITY OF MUSCLE SPASMS IN DRUG OR ELECTRICALLY INDUCED SEIZURES 3 MANAGE PATIENTS FOR ARE FIGHTING THE USE OF A VENTILATOR TO HELP WITH BREATHING.
2 MAJOR CLASSIFICATIONS
1 NONDEPOLARIZING
BLOCKING DRUGS
2DEPOLARIZING BLOCKING DRUG
NAME DEPOLARIZING BLOCKING DRUG
SUCCINYCHOLINE - DRUG OF CHOICE WHEN SHORT TERM MUSCLE RELAXATION IS NEEDED
5 N DEPOLARIZING DRUG
ATRACURIUM
CISTRACURIUM
PANCURONIUM
VECURONIUM