Which response best connects the pathology of myasthenia gravis with its signs and symptoms (S&S)?

A sudden, explosive, disorderly charge of neurons causes a transient aberration in brain function

Loss of the myelin sheath surrounding peripheral nerves causes asymmetric weakness

Destruction of acetylcholine receptors causes muscle weakness with prolonged activity.

A bacterial inflammatory illness that causes headache and photophobia.

Answer and Explanation

The Correct Answer is C

A. A sudden, explosive, disorderly charge of neurons causes a transient aberration in brain function: This describes the pathophysiology of seizures, not myasthenia gravis.

B. Loss of the myelin sheath surrounding peripheral nerves causes asymmetric weakness: This describes multiple sclerosis, not myasthenia gravis.

C. Destruction of acetylcholine receptors causes muscle weakness with prolonged activity: Myasthenia gravis is an autoimmune disease where antibodies attack acetylcholine receptors at the neuromuscular junction, leading to muscle weakness, especially after repeated use.

D. A bacterial inflammatory illness that causes headache and photophobia: This describes meningitis, not myasthenia gravis.

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Correct Answer is D

Explanation

A. An increased serum calcitonin level: Calcitonin is involved in lowering blood calcium levels, so increased levels would not indicate hypercalcemia but rather a compensatory mechanism to lower calcium.

B. An increased number of osteocytes: Osteocytes are bone cells, and their number is not a direct indicator of hypercalcemia. Osteoclasts and osteoblasts are more relevant to bone metabolism.

C. Elevated plasma magnesium levels: Elevated magnesium levels are not specifically indicative of hypercalcemia and can be related to other conditions.

D. An increased parathyroid hormone (PTH) level: Hypercalcemia can be associated with increased PTH levels, particularly in primary hyperparathyroidism. Elevated PTH can lead to increased calcium release from bones.

A. Eyelid and mouth drooping on the ipsilateral side: Facial drooping due to a stroke typically occurs on the contralateral side of the body. B. Homonymous hemianopia of the left visual field of both eyes: A left hemispheric stroke typically causes right-sided homonymous hemianopia. C. Hemiparesis of the right arm and leg with aphasia: A left hemispheric stroke often results in right-sided hemiparesis and can affect language centers, leading to aphasia.

Correct Answer is A

Explanation

A. The patient is now sleepy and won't wake up: Increased drowsiness or difficulty waking up could indicate worsening of the hemorrhagic stroke, potentially due to increased intracranial pressure or a secondary brain injury.

B. Identification of an elevated serum cholesterol level: Elevated cholesterol is a risk factor for ischemic strokes but is not a direct indicator of complications from a hemorrhagic stroke.

C. The presence of nausea and a headache: This could be a common symptom following a hemorrhagic stroke but is not necessarily a specific indicator of a complication.

D. A complaint of neck pain and light intolerance: These symptoms are less specific to complications of a hemorrhagic stroke and could be related to other issues.

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Which response best connects the pathology of myasthenia gravis with its signs and symptoms (S&S)?

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Naxlex Comprehensive Predictor Exams

Which laboratory data would alert the nurse to the possibility of hypercalcemia in the patient recently diagnosed with osteoporosis?

Correct Answer is D

Explanation

A. Hemiparesis of the left arm and leg with nystagmus: A left hemispheric stroke typically affects the right side of the body.

Correct Answer is A

Explanation

An elderly female patient is admitted to the hospital with a fractured hip. Which statement best describes the relationship between osteoporosis and the occurrence of pathological fractures related to aging?

A patient has seizure activity that is continuous in nature; the seizure subsides and then immediately resumes and continues. The nurse identifies this emergent condition as

A patient is admitted to the ED (emergency department) with an intracranial problem. Upon arrival the RN (registered nurse) immediately ensures that the head of the bed is elevated at 35 degrees. Identify the pathophysiological rational for this intervention?

A man, diagnosed with alcoholic liver disease and cirrhosis, presents to his healthcare provider for treatment. The nurse notes that his skin and sclera are jaundiced. While reviewing his laboratory data, the nurse should expect to find a serum bilirubin level and a serum bilirubin level.

In general, therapeutic interventions for a patient with osteoporosis will probably include drugs that

A patient is admitted to the emergency department (ED) following an overdose of acetaminophen (Tylenol) and is diagnosed with cirrhosis. Which laboratory finding is consistent with the diagnosis?

A patient has recently undergone major abdominal surgery. Identify a sequela that can result from prolonged bed rest after a surgical procedure.

When analyzing laboratory values, for a patient diagnosed with Graves' disease, the nurse would expect to find a