A collection of Question Banks in a variety of subjects and topics.
A 35-year-old woman notices a change in the appearance of a mole on her neck. Physical examination reveals that the lesion is an irregular, nodular, superficial mass with a variegated appearance. Biopsy demonstrates a primary malignant tumor. Which of the following factors is most predictive of the patient's long term prognosis?
Axons found around the area indicated by
the arrow in the figure above are myelinated by
Which of the following respiratory system components is derived from neural crest?
What percentage of patients with ischemic heart disease present with sudden death?
Digoxin toxicity may be precipitated by hypercalcemia?
A 2-month-old boy is evaluated for failure to thrive. As the pediatrician is examining the patient, she witnesses a seizure. Physical examination is remarkable for hepatomegaly, a finding later confirmed by CT scan, which also reveals renomegaly. Serum chemistries demonstrate severe hypoglycemia, hyperlipidemia, lactic acidosis, and ketosis. Which of the following diseases best accounts for this presentation?
An alert pediatric intern notices that a neonate with dysmorphic facies is twitching abnormally. As he watches, the baby experiences a seizure. Stat laboratories indicate a glucose of 90, serum sodium of 140, serum potassium of 4.2 and serum calcium of 3.9. Over the next several months, the child is admitted to the hospital twice for Candida infections, and once for a viral exanthem. Which of the following is the most likely diagnosis?
Which of the following metabolic processes occurs exclusively in the mitochondria?
A 21-year-old college student from Connecticut with a past history of Lyme disease presents with chronic pain and swelling in his right knee. He states that he has had problems with the knee for the past two years. Which of the following HLA alleles would you expect to be present in this individual?
A person lifts one foot prior to taking a step. Which of the following nerves innervates the muscle group that allows the person to maintain balance by holding the weight of his body over the foot remaining on the ground?