A client admitted to the hospital with suspected myasthenic crisis was prescribed edrophonium (Tensilon). The nurse misread the dosage and administered a higher dose than prescribed. The doctor has ordered an antidote to be given. What medication does the nurse anticipate administering?
Pyridostigmine
Flumazenil
Acetylcholine
Atropine
The Correct Answer is D
Choice A reason: Pyridostigmine is a medication used to treat myasthenia gravis by inhibiting acetylcholinesterase, but it is not used as an antidote for edrophonium overdose. Pyridostigmine helps improve muscle strength by increasing the amount of acetylcholine available at the neuromuscular junction.
Choice B reason: Flumazenil is an antidote for benzodiazepine overdose and has no effect on edrophonium. It works by competitively inhibiting the actions of benzodiazepines on the GABA receptor.
Choice C reason: Acetylcholine itself is not used as an antidote for edrophonium overdose. Administering acetylcholine would not counteract the effects of excessive acetylcholinesterase inhibition caused by edrophonium.
Choice D reason: Atropine is the correct antidote for edrophonium overdose. Atropine is an anticholinergic drug that can counteract the excessive accumulation of acetylcholine caused by edrophonium, thereby alleviating symptoms such as bradycardia and muscle weakness.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","C"]
Explanation
Choice A reason: Smoking is a significant trigger for asthma attacks. Tobacco smoke contains numerous irritants and chemicals that can inflame the airways and make asthma symptoms worse. Avoiding smoking, as well as second-hand smoke, is crucial for managing asthma and reducing the likelihood of attacks.
Choice B reason: The peak flow meter is a crucial tool for asthma management. It measures how well air moves out of the lungs. If a reading is in the red zone, it means that the airway is significantly obstructed, and immediate medical intervention is required. Calling 911 ensures that the patient gets timely help, which can be life-saving in severe asthma attacks.
Choice C reason: Washing bed clothes regularly is important because dust mites, which are common asthma triggers, thrive in bedding. Regular washing at a high temperature can kill these mites and reduce their presence, thereby minimizing one of the common indoor asthma triggers.
Choice D reason: Keeping the house fresh with air fresheners is actually not recommended for asthma patients. Many air fresheners contain volatile organic compounds (VOCs) and other chemicals that can irritate the airways and trigger asthma symptoms. Instead, maintaining good ventilation and using non-chemical methods to keep the air fresh is preferred.
Choice E reason: Using an inhaler two hours before exercising is not a standard recommendation for asthma management. Typically, a quick-relief inhaler (bronchodilator) is used 15-30 minutes before exercise to prevent exercise-induced bronchoconstriction. The two-hour mark is not effective in ensuring the medication's peak action during the exercise period.
Correct Answer is C
Explanation
Choice A reason: Clear-colored outflow is normal and indicates that the dialysis process is functioning correctly.
Choice B reason: Outflow amount exceeding inflow amount may be noted and reported, but it is not an immediate cause for concern unless accompanied by other symptoms.
Choice C reason: Cloudy opaque colored outflow indicates possible peritonitis, an infection of the peritoneum. This is a serious complication that requires immediate medical attention to prevent further complications.
Choice D reason: Non-purulent outflow is not an immediate cause for concern and indicates that there is no infection present.
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