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11 Cards in this Set
- Front
- Back
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How is a scorpion sting characterized?
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The tail of a scorpion contains a telson, where venom is produced and stored. The stinger injects NEUROTOXIC venom. Neurotoxins may cause paralytic effects. They may also cause muscle spasms or fasciculation (involuntary muscle contractions).
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What is the recommended dosing and administration of rt-PA for a stroke patient who weighs 176 lb. (80 kg.)?
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Dosing is 0.9 mg/kg with a maximum dose of 90. 80 kg x 0.9 mg = 72 mg. 10% is given as a bolus over 1 minute (7 mg). The remainder (65 mg) is given over 1 hour.
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Which cranial nerve is responsible for salivation and lacrimation?
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VII - the facial nerve.
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Administration of succinylcholine to a patient with Guillian Barre syndrome causes which adverse reaction?
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May rapidly increase serum potassium, hyperkalemia.
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Which cardiovascular condition places a patient at risk for stroke caused by an embolus?
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bacterial endocarditis
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What is the function of the autonomic nervous system?
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The autonomic nervous system consists of two subdivisions, the sympathetic nervous system and the parasympathetic nervous system. These two systems modulate the body's response to stressors. The autonomic nervous system has purely motor functions. It does not control sensory functions.
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Which factor is a relative contraindication for intravenous fibrinolytic therapy?
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blood glucose < 50 or > 400.
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Which arteries join the anterior and posterior circulation to form the circle of Willis?
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Anterior and posterior communicating arteries.
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Which condition poses the greatest risk for a stroke caused by thrombus?
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carotid stenosis. Narrowing of the inner surface (lumen) of the carotid artery, usually caused by atherosclerosis. Atheromatous plaque can narrow the lumen of the common or internal carotid arteries.
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Guillain-Barre is a dysfunction of which cranial nerves?
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III. oculomotor, VII. facial, IX. glossopharyngeal
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temporal arteritis - what are the signs and symptoms, what age group is affected, what is the most devastating complication?
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s/s include headache, pain while chewing, blurred or double vision. May be diagnosed with a CT scan for thickening of arterial walls, stenosis, or occlusion. Affects patients over the age of 50, Most devastating complication is irreversible vision loss.
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