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Is it Hypovolemic, Distributive, or Cardiogenic Shock?
2 month old male infant with a 4 day history of vomiting and diarrhea is brought to the emergency department by his mother. Initial findings in the emergency department include:
Airway: Breath sounds are normal. Airway is patent.
Breathing: Breathing is regular at 45 breaths per minute, unlabored.
Circulation: Proximal pulses are poor, distal pulses are absent, and extremities are cool. Feeling from the 5th toe upwards, the legs are cool up to the knee. Capillary refill is 8 seconds. Heart rate is 209 beats per minute, and blood pressure is 70mmHg systolic.
The infant does not recognize his parents, is extremely lethargic, and responds to pain only, with a minimal grimace.
The mucous membranes of the mouth are pink. An intraosseous (IO) is placed in the left tibia and 20cc/kg of normal saline is infused as rapidly as possible. The infant is reassessed. Airway and breathing remain stable. The heart rate is now 195. A repeat bolus of 20cc/kg is given and the patient is reassessed. After the 3rd fluid bolus is given, the patient becomes more alert, distal pulses return, and the patient improves throughout resuscitation. The heart rate has come down to 160.
What is Hypovolemic Shock