ATI RN
Pediatric Neurology Test Questions Questions
Question 1 of 5
Visual acuity reach20/20 at age of
Correct Answer: C
Rationale: Visual acuity reach20/20 by 6 months , per AAP, as retina and visual cortex mature, allowing fine discrimination. Earlier (A-B, 2-4 months) acuity is ~20/200; later (D-E, 8-10 months) refinfurther. Six months marks this milestone, making C the correct answer.
Question 2 of 5
Electromyography and nerve conduction velociti(NCVs) assess for abnormalitiof the neuromuscular apparatus. The amplitude of the NCVs signal is diminished in
Correct Answer: A
Rationale: Axonal neuropathidiminish NCV amplitude, per neurophysiology, from axon loss reducing signal strength. Guillain-Barré slows velocity (demyelination); botulism and myasthenia affect junctions, not amplitude; viral meningitis is unrelated. Axonal pathology makes A the correct answer.
Question 3 of 5
The study of choice in any of the following conditions (focal neurological deficits, alteration in level of consciousness, or chronic progressive headache pattern) is
Correct Answer: B
Rationale: MRI is the study of choice for focal deficits, altered consciousness, or chronic headaches, per AAN, due to superior detail of brain parenchyma, ischemia, or masses. CT is faster for acute hemorrhage; X-ray skeletal; EEG seizures; LP infection. MRIs resolution make B the correct answer.
Question 4 of 5
The electroencephalographic (EEG) of an 8-year-old girl revealed generalized 3-Hz spike-and-wave activity. Of the following, the MOST likely diagnosis is
Correct Answer: D
Rationale: Generalized 3-Hz spike-and-wave on EEG indicatabsence seizure , per ILAE, common in childhood absence epilepsy, with brief staring spells. Atypical absence has slower (<2.5 Hz) waves; benign childhood focal spikes; aphasia language loss; West hypsarrhythmia. Classic EEG pattern makes D the correct answer.
Question 5 of 5
The duration of anticonvulsant treatment variaccording to seizure type and epilepsy syndrome. For most children, anticonvulsant medications can be weaned off after 2 years without seizures. Of the following, the condition that usually require treatment for life is
Correct Answer: C
Rationale: Juvenile myoclonic epilepsy (JME) often requirlifelong treatment, per ILAE, with high relapse (>80%) off medication due to genetic myoclonic susceptibility. Simple and complex partial may remit; spasms resolve; Landau-Kleffner variable. JMpersistence makes C the correct answer.