What viral infection is the most classic cause of infectious mononucleosis as well as associated with malignancies including lymphoma?

A toddler is admitted to the PICU with suspected urosepsis. The urine culture shows a bacterial count of >100,000 CFU/mL. What is the interpretation of these results and next steps?

An adolescent with recent viral URI has had gait disturbance, with worsening symmetrical ascending weakness in the bilateral lower extremities. What expected findings on CSF results from a lumbar puncture would confirm his suspected diagnosis?

This is the most commonly reported sexually transmitted infection in the US:

You are evaluating a 7 month old infant who presents with progressive weakness and mild respiratory distress. Parents report he has been healthy other than some recent constipation. On exam you are concerned for poor muscle tone. What history questions are most important for you to ask to assist with determining the diagnosis?

Which of the following is not considered possible second line therapy for prolonged seizure management?

You suspect a patient has meningococcemia secondary to N. meningiditis. You complete a full laboratory workup while simultaneously ordering which antibiotic?

What are the anticipated cerebral spinal fluid (CSF) findings consistent with bacterial meningitis?

A 6 week old infant presents to the ED with a 2-3 day history of poor feeding, decreased wet diapers, and increased sleepiness. On exam you note tacky mucous membranes and a bulging fontanelle. Mom reports the baby has had a fever for the last 2 days that has not really improved with Tylenol. She reports that the baby was born term via vaginal delivery and was discharged home on DOL 2 along with mom. Baby stays at home with mom, has no siblings and no known sick contacts.  Which of the following diagnosis is highest on your differential?

What is the suspected diagnosis for the child with viral URI and gait disturbance in the previous question?