PCT- IV

Child Weight Calculation

• A formula to estimate a child's weight:

  • Age in years × 2 + 10 = Weight in kilograms

  • For a 3-year-old:

    • 3 × 2 = 6

    • 6 + 10 = 16 kg

Blood Pressure Considerations

• Hypotension and Normal Blood Pressure for a Child:

  • Hypotensive blood pressure threshold: 70 + Weight in kg

  • For a 3-year-old weighing 16 kg:

    • 70 + 16 = 86 mmHg

    • Thus, systolic blood pressure < 86 mmHg indicates hypotension

  • Systolic blood pressure ≥ 86 mmHg indicates normotension.

Normal Blood Pressure Calculation for Child

• Normal blood pressure for children:

  • Formula: 90 + (2 × Age in years)

  • For a 3-year-old:

    • 90 + (2 × 3) = 90 + 6 = 96 mmHg

    • Hence, a normal systolic blood pressure for a 3-year-old is 96 mmHg.

Summary

• A 3-year-old child weighs approximately 16 kg.

• Hypotension is defined at a systolic blood pressure of less than 86 mmHg.

• Normal blood pressure for the same child is approximately 96 mmHg.