Which of the following clients diagnosed with myasthenia gravis would the nurse identify as most at risk for developing a cholinergic crisis? A client who
reports taking an extra dose each day of their anticholinesterase medication.
is experiencing a respiratory infection and is short of breath.
has a family history of autoimmune disorders.
has a past medical history of type 2 diabetes mellitus.
The Correct Answer is A
A. "Reports taking an extra dose each day of their anticholinesterase medication."
This client is at highest risk for developing a cholinergic crisis. A cholinergic crisis occurs when there is overdose or excessive stimulation of acetylcholine receptors due to too much anticholinesterase medication. Symptoms include muscle weakness, respiratory distress, salivation, sweating, and bradycardia. Taking an extra dose of the medication can result in an overdose of acetylcholine, triggering these symptoms. Therefore, this client is at the greatest risk for a cholinergic crisis.
B. "Is experiencing a respiratory infection and is short of breath."
While respiratory infections can worsen symptoms of myasthenia gravis due to increased muscle weakness, this client is not directly at risk for a cholinergic crisis. Respiratory infections can increase the risk of myasthenic crisis, which is a different complication where muscle weakness worsens to the point of respiratory failure. A myasthenic crisis is caused by insufficient anticholinesterase medication or a disease exacerbation, not an overdose.
C. "Has a family history of autoimmune disorders."
A family history of autoimmune disorders may suggest a genetic predisposition to autoimmune diseases, but it does not increase the risk of a cholinergic crisis specifically. The risk of a cholinergic crisis is more directly related to medication management, not family history.
D. "Has a past medical history of type 2 diabetes mellitus."
Type 2 diabetes mellitus does not directly increase the risk of a cholinergic crisis. While diabetes may influence overall health and immune function, it does not have a direct impact on anticholinesterase therapy or the risk of cholinergic crisis in myasthenia gravis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Call for the rapid response team and request a portable chest x-ray: While it is important to call for help and obtain imaging if needed, the immediate action is to address the potential pneumothorax by sealing the wound. The rapid response team and chest x-ray are necessary for further assessment, but securing the wound is the priority in the moment.
B. Turn the suction drainage system off and auscultate breath sounds: Turning off the suction drainage system and auscultating breath sounds may be part of subsequent assessment and care, but these actions are secondary to stopping the entry of air into the pleural space. Auscultating breath sounds would be important after the chest tube is secured to assess for signs of pneumothorax or other complications, but it is not the first priority.
C. Apply a sterile dressing and tape on three sides: The first priority when a chest tube becomes accidentally dislodged is to seal the wound to prevent air from entering the pleural space, which could cause a pneumothorax (collapsed lung). The correct method to seal the chest tube insertion site is to apply a sterile dressing and tape it on three sides. This technique allows air to escape from the pleural space but prevents air from entering, creating a temporary "one-way valve" effect. This is crucial in stabilizing the patient until further medical intervention can be provided. The fourth side of the dressing is left open to allow for air to escape, which helps prevent a tension pneumothorax
D. Notify the healthcare provider immediately: While notifying the healthcare provider is important, securing the wound to prevent further air entry is the immediate priority. Notifying the provider can occur after the dressing is applied. Prompt action to stabilize the chest tube site is crucial to prevent further respiratory distress or complications.
Correct Answer is C
Explanation
A. Wheezes on inspiration: Wheezing is typically associated with obstructive pulmonary conditions, such as asthma or chronic obstructive pulmonary disease (COPD), and is caused by narrowing of the airways. In ARDS, the pathophysiology involves inflammation and fluid accumulation in the alveoli, which leads to impaired oxygen exchange but not typically to wheezing. Instead, crackles or rales (a fine, wet sound) are more commonly heard on auscultation in ARDS, particularly as fluid builds up in the alveoli.
B. Blood pressure 170/90: Although ARDS can be associated with hemodynamic instability, elevated blood pressure (170/90 mmHg) is not a typical finding. In fact, ARDS is more commonly associated with low blood pressure or hypotension, particularly if the client is experiencing shock or is on mechanical ventilation. Elevated blood pressure could suggest another issue, such as pain, anxiety, or the use of medications like vasopressors. It is not directly related to the pulmonary edema seen in ARDS.
C. Tachypnea: Tachypnea, or rapid breathing, is a hallmark clinical manifestation of acute respiratory distress syndrome (ARDS). In ARDS, pulmonary edema (fluid accumulation in the lungs) occurs as a result of damage to the alveolar-capillary membrane, leading to impaired gas exchange. The body attempts to compensate for decreased oxygenation by increasing the respiratory rate, leading to tachypnea. This is an early sign of respiratory distress and often precedes hypoxemia and other more severe manifestations. The nurse should closely monitor for tachypnea, as it can indicate worsening respiratory compromise.
D. Bradycardia: Bradycardia, or a slow heart rate, is not typically associated with ARDS. In fact, tachycardia (an elevated heart rate) is more commonly seen in response to hypoxia, respiratory distress, or as a compensatory mechanism for low blood pressure in critical illness. Bradycardia could indicate other issues such as vagal stimulation, medication effects, or electrolyte imbalances but is not characteristic of ARDS itself. 4o mini
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