A 50 kilogram man stands on a massless board with a boy on the other side.  The board balances.  What is the mass of the boy?  Express your answer as a number only without units.  

The __________ theory of motivation suggests a connection between internal physiological states and outward behavior.

Which of the following statements is true about hypospadias?

A 28-week gestation infant with a birthweight of 900 grams has 0.5 ml/kg/hr urine output at 48 hours of age. Total fluids are 100 ml/kg/day. Further evaluation reveals the following findings: Current weight 750 gramsHR 188RR 72Mean arterial blood pressure 22 mmHgNo abdominal massBladder non-palpableLaboratory Values: Na 151 mEq/L, K 5.8 mEq/L, BUN 30 mg/dl, Creatinine 0.8 mg/dl, elevated serum osmolarity and urine osmolarity You suspect the low urine output is secondary to:

You are called to assess a 3 week old, former 32 week infant with clay colored stools. The infant received TPN for 5 days until goal feedings were achieved. The infant is breastfeeding ad lib demand, voiding normally, stooling spontaneously, not having emesis and has a bronzed skin tone. The best diagnostic test to order for this infant is:

A newborn has a positive newborn screen for congenital adrenal hyperplasia (CAH). Which of the following is the appropriate early management strategy for this infant?

A 25 week gestation infant was treated for two weeks after birth with hydrocortisone for vasopressor-resistant hypotension. Until what age should this infant receive stress doses of steroids with procedures and/or surgeries?

Methamphetamine is a drug that targets the release of dopamine from presynaptic neurons by increasing the release of dopamine into the synapse.

Which of the following is CORRECT about astrocytes?

____________________ is responsible for establishing a baseline charge of -70mV for the resting potential of a neuron.