By what age should a child normally be able to kick a ball on request?

You are asked to evaluate a 5-year-old child who was brought to the ER by his mother and father. They tell you that for the past 24 hours, the child has been speaking in a muffled voice and drooling. He has no appetite and will not drink anything. Based on this information, which of the following tests would be most helpful in establishing a diagnosis for this patient?

The clinical presentation of osteogenesis imperfecta may include which of the following findings?

Which of the following pathogens is the most common causative agent for viral croup?

By what age should a child normally be able to ride a tricycle with pedals?

Risk factors for otitis externa include which of the following?

On examination of a 4-day-old healthy infant you note the presence of fine pinpoint white spots over the bridge of the nose, chin and cheeks. Which of the following conditions is the most likely diagnosis for this patient?

By what age should a child normally be able to feed self?

How can a doctor measure progression of AIDS in a patient infected with HIV-1?

In LCMV infection in lab mice, a single Y to F substitution in the epitope KAVYNFATM leads to a 100-fold reduction in affinity with the dominant T cell receptor. What is the consequence of this?