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 B

Explanation

A. "You have irreparably damaged your liver, there is no available treatment at this time.": Hepatitis A is usually a self-limiting illness with full recovery, and the liver often heals completely.

B. "A vaccine could have prevented this illness but a full recovery typically occurs with HAV.”: Hepatitis A can be prevented by vaccination, and most people recover fully without lasting liver damage.

C. "You likely came in contact with HAV-infected blood to have contracted this disease.": Hepatitis A is transmitted primarily through the fecal-oral route, not through blood contact.

D. "Expect to feel better in about a month but expect to have the symptoms for life.": While symptoms can last for several weeks to months, they do not persist for life in hepatitis A infections.

A. There is an imbalance between formation of new bone and the resorption of existing bone. B. An Invasion of a pathogen leads to infection: causing destruction and weakening of the bone. C. A decrease in blood supply to the bone results in bony necrosis or the death of bone cells. D. Increased amounts of estrogen in postmenopausal women contribute to bone loss.

Correct Answer is A

Explanation

A. There is an imbalance between the formation of new bone and the resorption of existing bone: Osteoporosis occurs when bone resorption outpaces bone formation, leading to decreased bone density and increased susceptibility to fractures.

B. An invasion of a pathogen leads to infection, causing destruction and weakening of the bone: This describes osteomyelitis, a bone infection, not osteoporosis.

C. A decrease in blood supply to the bone results in bony necrosis or the death of bone cells: This describes avascular necrosis, not osteoporosis.

D. Increased amounts of estrogen in postmenopausal women contribute to bone loss: In fact, decreased estrogen levels after menopause contribute to bone loss and osteoporosis.

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

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient presents to the emergency department (ED) with malaise, nausea and "yellow eyes." A diagnosis of hepatitis A (HAV) is confirmed. Which statement, by the registered nurse (RN), indicates an understanding of this illness?

Correct Answer is B

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?

Correct Answer is A

Explanation

A patient with leukocytosis, fever and left lower quadrant (LLQ) pain will most likely have a diagnosis of

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

A patient is diagnosed with Hashimoto's thyroiditis. Which clinical manifestations are expected?

During a workshop, a pathophysiology instructor is teaching a group of students about hypothyroidism. Which statement identifies why hypothyroidism is rarely seen in the U.S. (United States)?

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

An elderly patient is hospitalized with several problems. His medical history includes uncontrolled hypertension and Type II diabetes mellitus (DM). A HbA1c is measured This laboratory test measures the

A. High unconjugated, low direct: In liver disease, both conjugated (direct) and unconjugated bilirubin levels are typically elevated.

Which assessment findings would alert the nurse to the presence of a cerebellar brain attack?