Quiz 2 - Questions 2 Flashcards
What is a hallmark feature of Duchenne Muscular Dystrophy (DMD) during the early ambulatory stage (ages 5-8)?
A) Scoliosis
B) Gower’s sign
C) Dependent transfers
D) Severe respiratory infections
Correct Answer: B) Gower’s sign
Rationale:
- Correct (B): Gower’s sign reflects proximal muscle weakness, typical during the early ambulatory stage.
- Incorrect (A): Scoliosis develops in later stages.
- Incorrect (C): Dependent transfers occur in the late non-ambulatory stage.
- Incorrect (D): Respiratory infections are common in advanced stages.
Which stage of Spinal Muscular Atrophy (SMA) is characterized by onset >18 months and independent walking?
A) Type 1
B) Type 2
C) Type 3
D) Type 4
Correct Answer: C) Type 3
Rationale:
- Correct (C): Type 3 SMA (Kugelberg-Welander disease) presents with proximal weakness and independent walking.
- Incorrect (A): Type 1 involves <6 months onset and rapid progression.
- Incorrect (B): Type 2 has onset between 6-18 months and primarily affects the lower extremities.
- Incorrect (D): Type 4 has adult onset with no reduced lifespan.
Which Gross Motor Function Classification System (GMFCS) level describes a child who can walk independently but has limitations with running and jumping?
A) Level I
B) Level II
C) Level III
D) Level IV
Correct Answer: A) Level I
Rationale:
- Correct (A): Level I children walk independently with minimal functional limitations.
- Incorrect (B): Level II includes independent walking but with notable limitations.
- Incorrect (C): Level III requires mobility aids for ambulation.
- Incorrect (D): Level IV involves significant reliance on wheeled mobility.
What is the primary hallmark of Charcot-Marie-Tooth (CMT) disease?
A) Muscle hypertrophy
B) Distal muscle wasting
C) Proximal weakness
D) Joint laxity
Correct Answer: B) Distal muscle wasting
Rationale:
- Correct (B): Distal muscle wasting, particularly in the legs and arms, is a hallmark of CMT.
- Incorrect (A): Hypertrophy does not occur; weakness predominates.
- Incorrect (C): Proximal weakness is typical in other neuromuscular disorders like DMD.
- Incorrect (D): Joint laxity is not characteristic of CMT.
- CMT: Slowly progressive neuropathy affecting peripheral nerves
What respiratory condition is characterized by airless alveoli, inelastic lungs, and a respiratory rate >60 bpm?
A) Bronchopulmonary Dysplasia (BPD)
B) Respiratory Distress Syndrome (RDS)
C) Atelectasis
D) Cystic Fibrosis
Correct Answer: B) Respiratory Distress Syndrome (RDS)
Rationale:
- Correct (B): RDS presents with these hallmark features in neonates.
- Incorrect (A): BPD involves chronic lung scarring and oxygen dependence.
- Incorrect (C): Atelectasis is lung collapse, not specific to alveolar immaturity.
- Incorrect (D): Cystic Fibrosis involves thick mucus and lung infections.
Which type of SMA is prenatal in onset and typically not viable at birth?
A) Type 1
B) Type 2
C) Type 0
D) Type 3
Correct Answer: C) Type 0
Rationale:
- Correct (C): Type 0 presents prenatally with severe impairments and is usually incompatible with life.
- Incorrect (A): Type 1 has postnatal onset (<6 months).
- Incorrect (B): Type 2 occurs later (6-18 months).
- Incorrect (D): Type 3 begins after 18 months.
What is the purpose of standing programs for children with neuromuscular disorders?
A) Promote joint stability
B) Prevent contractures and improve bone health
C) Increase muscle hypertrophy
D) Reduce spasticity
Correct Answer: B) Prevent contractures and improve bone health
Rationale:
- Correct (B): Standing programs maintain joint integrity and promote skeletal health.
- Incorrect (A): Joint stability is a secondary outcome, not the primary goal.
- Incorrect (C): Muscle hypertrophy is not achieved through passive standing.
- Incorrect (D): Spasticity reduction is a potential, but indirect, benefit.
What is the appropriate PT intervention for early non-ambulatory Duchenne Muscular Dystrophy?
A) High resistance training
B) Stretching to prevent contractures
C) Submaximal exercise
D) Eccentric exercise
Correct Answer: C) Submaximal exercise
Rationale:
- Correct (C): Submaximal exercise avoids muscle breakdown and overexertion.
- Incorrect (A): High resistance training is contraindicated.
- Incorrect (B): Stretching is helpful but does not address overall functional conditioning.
- Incorrect (D): Eccentric exercise increases muscle damage in DMD.
Which PT outcome measure is specifically designed for functional mobility across environments?
A) GMFM
B) PEDI-CAT
C) Functional Mobility Scale
D) BOT-2
Correct Answer: B) PEDI-CAT
Rationale:
- Correct (B): PEDI-CAT assesses functional mobility and daily activity performance.
- Incorrect (A): GMFM focuses on gross motor skills.
- Incorrect (C): Functional Mobility Scale evaluates walking in specific distances.
- Incorrect (D): BOT-2 targets fine and gross motor coordination.
Which pulmonary condition in children is associated with scarring of lung tissue and dependence on supplemental oxygen?
A) RDS
B) Bronchopulmonary Dysplasia (BPD)
C) Atelectasis
D) Cystic Fibrosis
Correct Answer: B) Bronchopulmonary Dysplasia (BPD)
Rationale:
- Correct (B): BPD involves chronic scarring and long-term oxygen use.
- Incorrect (A): RDS is acute and related to surfactant deficiency.
- Incorrect (C): Atelectasis refers to localized lung collapse.
- Incorrect (D): Cystic Fibrosis involves thick mucus production and recurrent infections.
Which physical feature is commonly associated with Duchenne Muscular Dystrophy (DMD) due to muscle replacement by fat and fibrosis?
A) Pseudohypertrophy of calves
B) Muscle atrophy
C) Joint laxity
D) Kyphosis
Correct Answer: A) Pseudohypertrophy of calves
Rationale:
- Correct (A): The calves appear enlarged, but this is due to fat and fibrosis, not true muscle hypertrophy.
- Incorrect (B): Muscle atrophy occurs but is not visually prominent in early stages.
- Incorrect (C): Joint laxity is not characteristic of DMD.
- Incorrect (D): Kyphosis may develop but is not a defining feature.
What is a typical gait abnormality observed in children with Duchenne Muscular Dystrophy?
A) Scissoring gait
B) Waddling gait
C) Spastic gait
D) Steppage gait
Correct Answer: B) Waddling gait
Rationale:
- Correct (B): Waddling gait is due to proximal muscle weakness affecting hip stability.
- Incorrect (A): Scissoring gait is seen in spastic CP, not DMD.
- Incorrect (C): Spastic gait is unrelated to DMD.
- Incorrect (D): Steppage gait is seen in peripheral neuropathies, not DMD.
Which SMA type is associated with infantile onset and rapid progression leading to respiratory failure?
A) Type 0
B) Type 1
C) Type 2
D) Type 3
Correct Answer: B) Type 1
Rationale:
- Correct (B): Type 1 SMA (Werdnig-Hoffmann disease) presents with severe weakness and respiratory failure.
- Incorrect (A): Type 0 occurs prenatally and is typically incompatible with life.
- Incorrect (C): Type 2 has a slower progression and affects lower extremities more than upper.
- Incorrect (D): Type 3 is later onset with less severe progression.
What is the primary focus of bracing in SMA management?
A) Prevent scoliosis
B) Improve posture and function
C) Increase muscle hypertrophy
D) Correct gait abnormalities
Correct Answer: B) Improve posture and function
Rationale:
- Correct (B): Bracing helps maintain posture and functional capabilities in SMA patients.
- Incorrect (A): While scoliosis management is important, it is not the primary goal.
- Incorrect (C): Bracing does not increase muscle size.
- Incorrect (D): Bracing is not typically used to correct gait abnormalities in SMA.
Which GMFCS level describes children who are transported in a wheelchair but can operate a power wheelchair independently?
A) Level II
B) Level III
C) Level IV
D) Level V
Correct Answer: C) Level IV
Rationale:
- Correct (C): Level IV children rely on wheeled mobility but can control a power wheelchair.
- Incorrect (A): Level II describes walking with limitations but no need for wheelchairs.
- Incorrect (B): Level III involves hand-held mobility devices for ambulation.
- Incorrect (D): Level V includes total dependence for mobility.
What is the hallmark respiratory sign of Cystic Fibrosis (CF)?
A) Wheezing
B) Thick, viscous mucus
C) Intercostal retractions
D) Cyanosis
Correct Answer: B) Thick, viscous mucus
Rationale:
- Correct (B): Thick mucus leads to airway obstruction and frequent infections in CF.
- Incorrect (A): Wheezing is nonspecific and occurs in other conditions.
- Incorrect (C): Intercostal retractions are typical in acute respiratory distress, not CF.
- Incorrect (D): Cyanosis is a late-stage symptom of severe respiratory compromise.