Pediatric Fluid and Electrolyte Disturbances

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Questions and Answers

What is the primary ion found in extracellular fluids?

  • Magnesium
  • Calcium
  • Potassium
  • Sodium (correct)

Which condition occurs when the sodium concentration in the plasma drops below 130 mmol/L?

  • Hypokalemia
  • Hyperkalemia
  • Hyponatremia (correct)
  • Hypernatremia

What are symptoms of hyponatremia similar to?

  • Heat illness (correct)
  • Flu
  • Hypothermia
  • Dehydration

Which of the following is vital to prevent fatigue and impairment of muscular performance during exercise?

<p>Sodium (C)</p> Signup and view all the answers

What is the most common electrolyte disorder encountered in patients with chronic illness?

<p>Alteration in body compartments due to varied levels of minerals and abnormal fluid (C)</p> Signup and view all the answers

Why is it challenging to assess the effects of fluid and electrolyte restriction on muscle function compared to cardiovascular function during exercise?

<p>Muscle function assessment during exercise is more complex than cardiovascular performance assessment (C)</p> Signup and view all the answers

Which electrolyte is involved with muscle function along with sodium, potassium, and magnesium?

<p>Calcium (A)</p> Signup and view all the answers

What should be the initial step in correcting an electrolyte disorder in a chronic ill patient?

<p>Assess the risk of the particular electrolyte disorder and urgency of repletion (A)</p> Signup and view all the answers

Which symptoms may indicate manifestations of electrolyte disorders in chronic ill patients?

<p>Acute confusion and seizures (A)</p> Signup and view all the answers

What role does a careful history and physical examination play in detecting electrolyte disorders in chronic ill patients?

<p>They help establish a directed cause of an electrolyte disorder without further tests (D)</p> Signup and view all the answers

What is the primary reason fluid and electrolyte disturbances are common in pediatric patients?

<p>Their inability to maintain homeostasis during periods of fever and infection (C)</p> Signup and view all the answers

Why is it difficult for clinicians to assess the severity of dehydration in pediatric patients?

<p>Their limited ability to communicate physiologic derangements (A)</p> Signup and view all the answers

What is the daily fluid intake requirement for pediatric patients to excrete waste and maintain a reasonable balance?

<p>500-600 ml/m2 per day (A)</p> Signup and view all the answers

What is the primary indication for a change in therapy from oral rehydration to IV repletion in pediatric patients?

<p>No improvement or an increase in morbidity (C)</p> Signup and view all the answers

Why are insensible water losses proportionally less than those of adults in pediatric patients?

<p>Their larger percentage of total body water (C)</p> Signup and view all the answers

What are the limitations of the kidneys in pediatric patients regarding changes in water balance?

<p>Their ability to concentrate or dilute the urine in response to changes in water balance (B)</p> Signup and view all the answers

What is a possible cause of the development of hyponatremia in some children?

<p>Excess sodium in maintenance solutions (C)</p> Signup and view all the answers

Which electrolyte imbalances can potentially lead to hyperchloremic acidosis and hyperkalemia?

<p>Excess sodium, chloride, and potassium (A)</p> Signup and view all the answers

What is the main emphasis in preventing electrolyte disturbances in children?

<p>Use of oral rehydration solutions and early resumption of normal diet (A)</p> Signup and view all the answers

What is the prevalence of dehydration in elderly patients admitted to hospital?

<p>1 in 5 (A)</p> Signup and view all the answers

What is the risk of developing hyponatremia when treating heart failure with intravenous furosemide in elderly patients?

<p>9.3% per treatment (A)</p> Signup and view all the answers

Which sodium concentration is recommended for oral rehydration solutions for athletes with minimal to moderate sodium deficits?

<p>90 mmol/L (A)</p> Signup and view all the answers

What is the carbohydrate concentration recommended in oral rehydration solutions for athletes with minimal to moderate sodium deficits?

<p>2-4% (D)</p> Signup and view all the answers

Which population benefits most from rapid fluid replacement and re-establishment of sodium balance?

<p>Athletes (D)</p> Signup and view all the answers

What is an independent predictor of mortality in elderly patients admitted with hip fractures?

<p>Hyponatremia (B)</p> Signup and view all the answers

Which electrolyte abnormality can be caused by the treatment of heart failure with intravenous furosemide in elderly patients?

<p>Hyponatremia (C)</p> Signup and view all the answers

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