A nurse admits a client who has a subarachnoid hemorrhage and increased intracranial pressure (ICP). Which of the following medications should the nurse expect to administer to decrease ICP?
Dopamine
Mannitol
Nicardipine
Phenytoin
The Correct Answer is B
A. Dopamine: Dopamine is a catecholamine often used to increase blood pressure and cardiac output in hypotensive states. It does not directly reduce intracranial pressure (ICP).
B. Mannitol: Mannitol is an osmotic diuretic commonly used to reduce intracranial pressure in clients with conditions such as subarachnoid hemorrhage, traumatic brain injury, or cerebral edema. It works by drawing fluid from brain tissue into the bloodstream, thereby reducing cerebral edema and ICP.
C. Nicardipine: Nicardipine is a calcium channel blocker used primarily to lower blood pressure in hypertensive emergencies. While it can indirectly impact intracranial pressure by reducing cerebral perfusion pressure, its primary mechanism of action is not targeted at reducing ICP.
D. Phenytoin: Phenytoin is an antiepileptic medication used to prevent and control seizures. While it may be indicated in clients who have experienced a subarachnoid hemorrhage to prevent seizures, it does not directly reduce intracranial pressure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. "A deregulated cytokine storm causes an inflammatory response": Systemic inflammatory response syndrome (SIRS) is characterized by a dysregulated inflammatory response triggered by various insults such as infection, trauma, burns, or ischemia. In SIRS, the immune system responds excessively, leading to the release of pro-inflammatory cytokines (cytokine storm), including tumor necrosis factor-alpha (TNF-α), interleukin-1 (IL-1), and interleukin-6 (IL-6). This cytokine cascade results in widespread inflammation and systemic manifestations, such as fever, tachycardia, tachypnea, and leukocytosis.
B. "The major organ prone to injury during SIRS is the heart": While SIRS can lead to multi-organ dysfunction, including cardiac dysfunction, it does not primarily target the heart. SIRS affects multiple organs, including the lungs, kidneys, liver, and gastrointestinal tract. Cardiac dysfunction in SIRS may result from the inflammatory response, hypoperfusion, or direct myocardial injury.
C. "Spleen dysfunction causes blood clotting issues": SIRS can lead to coagulation abnormalities, but spleen dysfunction is not the primary cause. Coagulation abnormalities in SIRS are often attributed to endothelial dysfunction, activation of the coagulation cascade, and consumption of clotting factors, rather than spleen dysfunction.
D. "Activation of the inflammatory cascade causes increased perfusion": Activation of the inflammatory cascade in SIRS does not typically lead to increased perfusion. Instead, SIRS can lead to alterations in perfusion, including tissue hypoperfusion and microvascular dysfunction. In severe cases, SIRS can progress to septic shock, characterized by profound hypotension and inadequate tissue perfusion.
Correct Answer is ["A","B","C","D"]
Explanation
All of the following should be included in the teaching:
A. Living a sedentary lifestyle: Sedentary behavior, characterized by physical inactivity, is a risk factor for various cardiovascular conditions, including atrial fibrillation. Regular exercise is important for maintaining heart health and reducing the risk of atrial fibrillation.
B. Family history of atrial fibrillation: A family history of atrial fibrillation increases an individual's risk of developing the condition. Genetic factors play a role in predisposing individuals to atrial fibrillation, and having a close relative with the condition can elevate one's risk.
C. History of thyroid disease: Thyroid disorders, particularly hyperthyroidism (overactive thyroid), are associated with an increased risk of atrial fibrillation. Thyroid hormones influence heart rate and rhythm, and imbalances can predispose individuals to atrial fibrillation.
D. Recent influenza infection: Infections, particularly respiratory infections such as influenza, can trigger episodes of atrial fibrillation in susceptible individuals. The inflammatory response and physiological stress associated with infections can disrupt normal heart rhythm and precipitate atrial fibrillation episodes.
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