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Zorluk: OrtaPediatric Gastrointestinal Disorders

A 14-month-old infant is brought to the emergency department with a 3-day history of severe watery diarrhea and non-bilious vomiting. On examination, the infant is lethargic, has sunken eyes, dry mucous membranes, and a delayed capillary refill of 4 seconds. Vital signs show a heart rate of 170/min, respiratory rate of 40/min, and blood pressure of 70/40 mmHg. Arrange the following management steps in the correct sequential order from immediate priority to subsequent care.

  1. 1Establish peripheral intravenous (IV) or intraosseous (IO) access.
  2. 2Administer a 20 mL/kg bolus of isotonic crystalloid solution.
  3. 3Reassess vital signs, capillary refill, and mental status.
  4. 4Initiate calculated intravenous maintenance fluids and ongoing deficit replacement.
  5. 5Transition to oral rehydration and an age-appropriate diet.

Cevap

The correct sequence begins with securing vascular access, followed by administering a rapid isotonic fluid bolus, reassessing the patient's hemodynamic status, starting maintenance and deficit intravenous fluids, and finally transitioning to enteral feeding.
In the setting of severe pediatric gastroenteritis complicated by hypovolemic shock (evidenced by lethargy, hypotension, marked tachycardia, and delayed capillary refill), the absolute first priority is to restore circulating intravascular volume. The sequence must begin with securing reliable vascular access (IV or IO). Once access is established, the clinician must administer a rapid bolus of 20 mL/kg of isotonic crystalloid (such as normal saline or Ringer's lactate). Because the physiological response to fluid resuscitation dictates the next steps, immediate reassessment of vital signs and perfusion is required. If the patient remains in shock, further boluses are given. Once the patient is stabilized and shock is reversed, the focus shifts to calculating and administering intravenous maintenance fluids alongside the remaining fluid deficit over 24 hours. Finally, when the patient is hemodynamically stable, alert, and capable of tolerating oral intake without vomiting, transitioning to oral rehydration and an age-appropriate diet is indicated to facilitate enterocyte recovery.

Adım Adım Çözüm

1
Recognize hypovolemic shock and establish access.
Peripheral IV or IO access is secured.
The patient's lethargy, tachycardia, prolonged capillary refill, and hypotension are classic signs of decompensated shock, requiring immediate intravascular intervention.
2
Deliver a 20 mL/kg isotonic fluid bolus.
Intravascular volume is acutely expanded.
Isotonic crystalloids (Normal Saline or Ringer Lactate) quickly restore circulating blood volume and improve tissue perfusion without causing dangerous fluid shifts.
3
Reassess clinical parameters.
The physiological response to the fluid bolus is evaluated.
Reassessment guides whether to administer additional fluid boluses (up to 60 mL/kg total) or proceed to maintenance hydration.
4
Calculate and initiate maintenance and deficit fluids.
Slow, sustained rehydration begins.
Gradual replacement of intracellular and interstitial fluid losses over 24 hours prevents complications such as rapid cerebral fluid shifts.
5
Resume oral intake.
The patient transitions off intravenous fluids.
Enteral nutrition promotes enterocyte recovery and gut healing, and is the preferred maintenance route once the patient is hemodynamically stable.

Anahtar Kavram

Management of Severe Pediatric Dehydration and Hypovolemic Shock
Tahmini Süre:1m 30s
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Konular

Pediatric Gastrointestinal Disorders

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