A 10-month-old infant boy is brought to the emergency depart…

A 10-month-old infant boy is brought to the emergency department. Your initial assessment reveals a lethargic, pale infant with slow respirations and slow, weak central pulses. One team member begins ventilation with a bag-mask device with 100% oxygen. A second team member attaches the monitor/defibrillator and obtains vital signs while a third team member attempts to establish IV/IO access. The patient’s heart rate is 38/min. The infant’s blood pressure is 58/38 mm Hg, and capillary refill is 4 seconds. His central pulses remain weak, and distal pulses cannot be palpated. Chest compressions are started and IO access is obtained. Which medication do you anticipate will be given next?

Use this information for the next three questions. Researche…

Use this information for the next three questions. Researchers studying a small milkweed population note that some plants produce a toxin and other plants do not. The dominant allele (T) codes for an enzyme that makes the toxin, and the recessive allele (t) codes for a nonfunctional enzyme that cannot produce the toxin. Heterozygotes produce an intermediate amount of toxin. The frequency of the TT genotype is 0.56.   What would be the expected frequency of the heterozygotes?

A 15-year-old boy presents with acute onset of severe respir…

A 15-year-old boy presents with acute onset of severe respiratory distress, with retractions and an oxygen saturation of 85%.  His trachea is deviated to the right, and there are no breath sounds on the left.  His heart rate is 140/min., his blood pressure is 84/60 mm Hg, and his capillary refill time is 3 seconds.  What is the most appropriate intervention?