A 4-year-old child is admitted to the pediatric unit with persistent vomiting for the past 24 hours. The child appears lethargic and has decreased skin turgor. Which nursing intervention should be the priority?
1Administer antiemetic medication as prescribed
2Establish intravenous access for fluid replacement✓ 정답
3Obtain a stool sample for laboratory analysis
4Encourage oral intake of clear fluids
해설
Establishing IV access is priority to correct fluid/electrolyte imbalances in a dehydrated child with vomiting. Antiemetics, stool analysis, and oral fluids are less urgent as they don't address the immediate dehydration.
The child presents with persistent vomiting for 24 hours, lethargy, and decreased skin turgor. These findings are classic clinical indicators of significant dehydration, a common and potentially life-threatening complication of acute gastroenteritis in young children [1,2]. In the hierarchy of nursing priorities, addressing circulatory volume and preventing hypovolemic shock takes precedence, following the ABC (Airway, Breathing, Circulation) framework. Lethargy and decreased skin turgor signal that the child's compensatory mechanisms are failing, making rapid intervention critical.
Analysis of the Correct Answer
Establishing intravenous access for fluid replacement (Option 2) is the priority. A child with a 24-hour history of persistent vomiting is unable to retain oral fluids, and the physical assessment confirms a fluid volume deficit. The clinical sign of lethargy is a particularly concerning neurological manifestation that can indicate moderate to severe dehydration and impending shock [1]. Intravenous (IV) access allows for the immediate and controlled administration of isotonic fluids to restore intravascular volume, improve tissue perfusion, and correct electrolyte imbalances. This intervention directly targets the most immediate threat to life—hypovolemic shock.
Analysis of Incorrect Answers
- Option 1: Administer antiemetic medication as prescribed. While controlling vomiting is important to break the cycle of fluid loss, administering an antiemetic does not address the existing, critical fluid volume deficit. The priority is to replace what has already been lost. Furthermore, IV access must be established first to administer the medication safely, especially if the child continues to vomit.
- Option 3: Obtain a stool sample for laboratory analysis. Identifying the causative pathogen, such as rotavirus, is a secondary intervention [1,2]. While diagnostic information is valuable for epidemiological tracking and confirming the etiology of the gastroenteritis, it does not treat the child’s immediate, life-threatening dehydration. This task can be safely deferred until after fluid resuscitation has begun.
- Option 4: Encourage oral intake of clear fluids. Oral rehydration therapy is a cornerstone of gastroenteritis management, but it is contraindicated as the initial intervention in a child with persistent vomiting and altered mental status (lethargy) . Attempting oral intake in this scenario carries a high risk of aspiration and will likely be ineffective, as the child cannot retain the fluids. The gastrointestinal tract needs a period of rest, and fluid replacement must be achieved via the parenteral route.
Pathophysiology and Clinical Application
Acute gastroenteritis leads to excessive loss of water and electrolytes through vomiting and diarrhea. This loss depletes the extracellular fluid compartment, leading to decreased skin turgor. As intravascular volume declines, cardiac output falls, resulting in poor cerebral perfusion, which manifests clinically as lethargy. A study on rotavirus-associated gastroenteritis highlights that clinical assessment of dehydration severity by a pediatrician is a critical step upon admission [1]. The presence of lethargy and decreased skin turgor places this child in a category of at least moderate dehydration, where IV therapy is indicated. Furthermore, research on prolonged hospitalization for acute gastroenteritis identifies severe dehydration as a key factor worsening patient outcomes, underscoring the need for its prompt and aggressive management . Standardized guidelines universally recommend prioritizing the rapid correction of hypovolemia before any other diagnostic or supportive measures are undertaken .
References (research sources)
[1]
Rotavirus-associated acute gastroenteritis in children under five years: a cross-sectional study from southern Iran.Research articleTariverdi M, Tamaddondar M, Hooshyar D, Fallahi M, Rahmati MB, Hakami MM, Asgari A, Abdollahi H. (2026) · DOI: 10.18502/ijm.v18i3.21664
Clinical Practice Guide: Managing Suspected Severe Dehydration in a Pediatric Patient
Assessment Findings Requiring Immediate Action
Neurological: Lethargy, irritability, or decreased level of consciousness are red flags for moderate to severe dehydration and impending shock.
Cardiovascular: Tachycardia, weak peripheral pulses, and hypotension (a late finding in children) signal circulatory compromise.
History: Persistent vomiting or diarrhea for 24 hours or more, with an inability to tolerate oral fluids, necessitates parenteral intervention.
Priority Nursing Interventions
Establish IV Access and Initiate Fluid Resuscitation: Obtain intravenous access immediately using the largest bore catheter feasible. Administer an isotonic crystalloid bolus (e.g., 20 mL/kg of 0.9% normal saline or lactated Ringer's) as prescribed, reassessing the patient frequently for signs of fluid overload or improvement.
Strict Intake and Output Monitoring: Insert a urinary catheter if the child is unable to void on demand or if strict hourly output monitoring is required. Document all fluid intake and output meticulously, including ongoing losses from vomiting or diarrhea.
Continuous Cardiorespiratory Monitoring: Place the child on a cardiac monitor and pulse oximeter. Monitor vital signs every 5 to 15 minutes during the initial resuscitation phase, observing for trends in heart rate, blood pressure, and respiratory status.
Daily Weights and Physical Reassessment: Obtain an accurate baseline weight in kilograms. Reassess skin turgor, mucous membranes, and level of consciousness frequently to evaluate the response to therapy.
Ongoing Evaluation and Secondary Interventions
Laboratory Studies: Once the patient is hemodynamically stable, obtain blood samples for electrolytes, blood urea nitrogen (BUN), creatinine, and glucose to guide ongoing fluid management and identify acid-base disturbances.
Antiemetic Administration: After initial fluid resuscitation has begun and renal function is assessed, administer prescribed antiemetics to control vomiting and facilitate the eventual transition to oral rehydration.
Oral Rehydration Trial: Once vomiting is controlled and the child is alert, introduce small, frequent amounts of an oral rehydration solution (ORS). Continue IV fluids until oral intake is well tolerated and sufficient to maintain hydration.
Lethargy — A state of drowsiness, listlessness, or reduced consciousness, which in a dehydrated child indicates moderate to severe fluid volume deficit and failing compensatory mechanisms.
Decreased skin turgor — A loss of skin elasticity where pinched skin returns slowly to its original position, a classic sign of dehydration due to loss of interstitial fluid.
Hypovolemic shock — An emergency condition caused by a significant loss of intravascular fluid volume, leading to inadequate tissue perfusion and oxygen delivery.
ABC Framework — A priority-setting method in nursing (Airway, Breathing, Circulation) where life-threatening circulatory issues like severe dehydration are addressed before other needs.
Isotonic fluids — Intravenous solutions with the same osmotic pressure as blood plasma, such as 0.9% normal saline or lactated Ringer's, used to expand intravascular volume safely.