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ShadowHealth 4606: Generalized Weakness Assessment Results
2026-2027 BANK QUESTIONS WITH DETAILED VERIFIED
ANSWERS EXAM QUESTIONS WILL COME FROM HERE
(100% CORRECT ANSWERS A+ GRADED
1. A 72-year-old patient reports a three-month history of progressive
generalized weakness. Which initial laboratory finding would be most
consistent with polymyalgia rheumatica?
A. Elevated creatinine kinase
B. Positive anti-cyclic citrullinated peptide antibody
C. Markedly elevated erythrocyte sedimentation rate
D. Low thyroid-stimulating hormone
Answer: C. Markedly elevated erythrocyte sedimentation rate
Explanation: Polymyalgia rheumatica is an inflammatory condition
characterized by marked elevation of acute phase reactants,
particularly ESR, often exceeding 40 mm/hr. A normal ESR makes the
diagnosis unlikely. Creatinine kinase elevation suggests myositis, anti-
CCP is associated with rheumatoid arthritis, and low TSH indicates
hyperthyroidism.
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2. A patient presents with bilateral proximal muscle weakness without
sensory loss. Electromyography shows low-amplitude, short-duration
motor unit potentials with early recruitment. These findings are most
consistent with which category of disorder?
A. Myelopathy
B. Neuropathy
C. Myopathy
D. Neuromuscular junction disorder
Answer: C. Myopathy
Explanation: Low-amplitude, short-duration motor unit potentials with
early recruitment are the classic EMG findings in myopathic disorders,
reflecting loss of muscle fibers within motor units. Neuropathy typically
shows high-amplitude, long-duration potentials. Neuromuscular
junction disorders may show decremental or incremental responses.
3. Which historical feature best distinguishes fatigue from true muscle
weakness?
A. Symptoms worse in the morning
B. Difficulty rising from a chair
C. Generalized lack of energy relieved by rest
D. Inability to open a jar despite multiple attempts
Answer: C. Generalized lack of energy relieved by rest
Explanation: Fatigue is a subjective sense of exhaustion or lack of
energy that improves with rest, whereas true weakness is an objective
loss of muscle power. Difficulty rising from a chair and inability to open
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a jar indicate objective motor impairment. Fatigue is typically not task-
specific.
4. In evaluating a patient with suspected statin-induced myopathy,
which laboratory test is most essential?
A. Aldolase
B. Creatinine kinase
C. Lactate dehydrogenase
D. Myoglobin
Answer: B. Creatinine kinase
Explanation: Creatinine kinase is the most sensitive and specific enzyme
marker for muscle injury. While aldolase, LDH, and myoglobin can also
be elevated in muscle damage, CK is the standard for diagnosing and
monitoring statin-induced myopathy. CK levels greater than 10 times
the upper limit of normal warrant discontinuation.
5. A 68-year-old man with a 40-pack-year smoking history reports
progressive weakness and difficulty climbing stairs for six weeks.
Examination reveals diminished deep tendon reflexes. Which
paraneoplastic antibody is most associated with Lambert-Eaton
myasthenic syndrome?
A. Anti-acetylcholine receptor antibody
B. Anti-voltage-gated calcium channel antibody
C. Anti-Hu antibody
D. Anti-Yo antibody
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Answer: B. Anti-voltage-gated calcium channel antibody
Explanation: Lambert-Eaton myasthenic syndrome is caused by
antibodies against presynaptic voltage-gated calcium channels,
impairing acetylcholine release. It is often paraneoplastic, associated
with small cell lung cancer. Anti-acetylcholine receptor antibodies are
found in myasthenia gravis. Anti-Hu and anti-Yo are associated with
other paraneoplastic syndromes.
6. A patient reports weakness that worsens with repetitive activity and
improves with rest. Single-fiber electromyography shows increased
jitter. Which disorder is most likely?
A. Polymyositis
B. Amyotrophic lateral sclerosis
C. Myasthenia gravis
D. Chronic inflammatory demyelinating polyneuropathy
Answer: C. Myasthenia gravis
Explanation: Fatigable weakness that fluctuates and improves with rest
is characteristic of myasthenia gravis. Increased jitter on single-fiber
EMG reflects impaired neuromuscular transmission. Polymyositis
causes persistent weakness, ALS causes progressive weakness with
upper motor neuron signs, and CIDP causes sensory-motor neuropathy.
7. Which electrolyte abnormality is most likely to cause generalized
muscle weakness through alteration of resting membrane potential?
A. Hypercalcemia
ShadowHealth 4606: Generalized Weakness Assessment Results
2026-2027 BANK QUESTIONS WITH DETAILED VERIFIED
ANSWERS EXAM QUESTIONS WILL COME FROM HERE
(100% CORRECT ANSWERS A+ GRADED
1. A 72-year-old patient reports a three-month history of progressive
generalized weakness. Which initial laboratory finding would be most
consistent with polymyalgia rheumatica?
A. Elevated creatinine kinase
B. Positive anti-cyclic citrullinated peptide antibody
C. Markedly elevated erythrocyte sedimentation rate
D. Low thyroid-stimulating hormone
Answer: C. Markedly elevated erythrocyte sedimentation rate
Explanation: Polymyalgia rheumatica is an inflammatory condition
characterized by marked elevation of acute phase reactants,
particularly ESR, often exceeding 40 mm/hr. A normal ESR makes the
diagnosis unlikely. Creatinine kinase elevation suggests myositis, anti-
CCP is associated with rheumatoid arthritis, and low TSH indicates
hyperthyroidism.
,2|Page
2. A patient presents with bilateral proximal muscle weakness without
sensory loss. Electromyography shows low-amplitude, short-duration
motor unit potentials with early recruitment. These findings are most
consistent with which category of disorder?
A. Myelopathy
B. Neuropathy
C. Myopathy
D. Neuromuscular junction disorder
Answer: C. Myopathy
Explanation: Low-amplitude, short-duration motor unit potentials with
early recruitment are the classic EMG findings in myopathic disorders,
reflecting loss of muscle fibers within motor units. Neuropathy typically
shows high-amplitude, long-duration potentials. Neuromuscular
junction disorders may show decremental or incremental responses.
3. Which historical feature best distinguishes fatigue from true muscle
weakness?
A. Symptoms worse in the morning
B. Difficulty rising from a chair
C. Generalized lack of energy relieved by rest
D. Inability to open a jar despite multiple attempts
Answer: C. Generalized lack of energy relieved by rest
Explanation: Fatigue is a subjective sense of exhaustion or lack of
energy that improves with rest, whereas true weakness is an objective
loss of muscle power. Difficulty rising from a chair and inability to open
,3|Page
a jar indicate objective motor impairment. Fatigue is typically not task-
specific.
4. In evaluating a patient with suspected statin-induced myopathy,
which laboratory test is most essential?
A. Aldolase
B. Creatinine kinase
C. Lactate dehydrogenase
D. Myoglobin
Answer: B. Creatinine kinase
Explanation: Creatinine kinase is the most sensitive and specific enzyme
marker for muscle injury. While aldolase, LDH, and myoglobin can also
be elevated in muscle damage, CK is the standard for diagnosing and
monitoring statin-induced myopathy. CK levels greater than 10 times
the upper limit of normal warrant discontinuation.
5. A 68-year-old man with a 40-pack-year smoking history reports
progressive weakness and difficulty climbing stairs for six weeks.
Examination reveals diminished deep tendon reflexes. Which
paraneoplastic antibody is most associated with Lambert-Eaton
myasthenic syndrome?
A. Anti-acetylcholine receptor antibody
B. Anti-voltage-gated calcium channel antibody
C. Anti-Hu antibody
D. Anti-Yo antibody
, 4|Page
Answer: B. Anti-voltage-gated calcium channel antibody
Explanation: Lambert-Eaton myasthenic syndrome is caused by
antibodies against presynaptic voltage-gated calcium channels,
impairing acetylcholine release. It is often paraneoplastic, associated
with small cell lung cancer. Anti-acetylcholine receptor antibodies are
found in myasthenia gravis. Anti-Hu and anti-Yo are associated with
other paraneoplastic syndromes.
6. A patient reports weakness that worsens with repetitive activity and
improves with rest. Single-fiber electromyography shows increased
jitter. Which disorder is most likely?
A. Polymyositis
B. Amyotrophic lateral sclerosis
C. Myasthenia gravis
D. Chronic inflammatory demyelinating polyneuropathy
Answer: C. Myasthenia gravis
Explanation: Fatigable weakness that fluctuates and improves with rest
is characteristic of myasthenia gravis. Increased jitter on single-fiber
EMG reflects impaired neuromuscular transmission. Polymyositis
causes persistent weakness, ALS causes progressive weakness with
upper motor neuron signs, and CIDP causes sensory-motor neuropathy.
7. Which electrolyte abnormality is most likely to cause generalized
muscle weakness through alteration of resting membrane potential?
A. Hypercalcemia
