Fluid and electrolyte balance
Pediatrics · Topic 15
Source: NMC CBME Curriculum 2024 · Volume II · Pediatrics · Topic 15 · combined PDF page 335
Practice questions
- A clinician assessing an infant with possible fluid disturbance should be particularly cautious about applying adult assumptions because children differ in which two characteristics highlighted in a pediatric review?
- A trainee says that fluid management principles can be transferred unchanged from adults to infants because the same electrolytes are measured. Which response is most appropriate?
- A critically ill child develops new clinical signs suggesting a fluid or electrolyte disturbance. Which general response is best supported by pediatric critical-care literature?
- A child has an abnormal serum sodium result, but the examination also suggests a change in circulating volume. How should the sodium result be used?
- A child's serum sodium is within the laboratory reference interval, but the child has clinical findings concerning for dehydration. Which conclusion is most appropriate?
- A laboratory report shows a serum sodium concentration outside the reference interval in a child. Which statement best describes the finding?
- Which combination of electrolytes is specifically included among the pediatric critical-care disturbances discussed in a case-based review?
- A critically ill child has an abnormal potassium result. Which approach is most appropriate?
- A child has an unexpected potassium result that does not fit the clinical picture, and the specimen is reported as possibly hemolyzed. What is the best next step in interpreting the result?
- A child with critical illness is found to have a potassium abnormality. Which statement is most consistent with the pediatric fluid-balance literature?
- A child has a reported calcium abnormality during critical illness. Which interpretation is best?
- A child with an electrolyte abnormality develops new clinical deterioration. What is the most appropriate general priority?
- A child is being evaluated for dehydration. Which approach best reflects the pediatric review's emphasis on safe assessment?
- A team is planning a fluid challenge for a critically ill child with hemodynamic concerns. Which principle is best supported by the review of intravenous bolus rates?
- A protocol proposes an identical intravenous bolus rate for all critically ill patients, without regard to clinical circumstances. Which concern best reflects the available review evidence?
- During a fluid challenge, which factor should guide the decision to continue or modify fluid administration?
- A clinician is asked whether the literature establishes one optimal intravenous bolus volume and rate for all critically ill patients. Which answer is most accurate?
- In an infant with a developing fluid problem, why may relying on a single snapshot assessment be unsafe?
- A pediatric ward team reviews the purpose of intravenous access in fluid and electrolyte care. Which statement is most appropriate?
- A child has clinical concern for dehydration, and the team is considering whether intravenous therapy may be needed. Which decision principle is best?
- A critically ill child has abnormalities in both fluid status and an electrolyte measurement. Which approach best reflects pediatric critical-care principles?
- A laboratory report identifies a sodium abnormality in a child whose clinical status has changed. Which next step best demonstrates appropriate interpretation?
- Which statement best captures the role of pediatric-specific knowledge in preventing unsafe fluid and electrolyte care?
- A trainee interprets an electrolyte report without checking whether the result fits the child's presentation. What is the main flaw in this approach?
- A child with critical illness has a newly identified calcium abnormality. Which response is most appropriate based on the scope of pediatric fluid and electrolyte care?
- A team member argues that fluid balance in infants is straightforward because their body surface area is small. Which correction is most appropriate?
- A physician is concerned about fluid and electrolyte balance in a critically ill infant. Which broad management priority is most consistent with pediatric review evidence?
- A clinician is uncertain whether a fluid challenge should be given immediately or at a different rate to a critically ill patient. What does the supplied review most directly support?
- A child is being monitored after treatment for a fluid disturbance. Which general strategy best supports safe ongoing care?