Final answer:
To calculate the fluid requirement needs using the Holliday-Seegar formula, you need to determine which weight range the client falls into and apply the corresponding formula. For a client weighing 16.7 kg, the fluid requirement is approximately 1335 mL per day.
Step-by-step explanation:
To calculate the fluid requirement needs of a pediatric client using the Holliday-Seegar formula, you need to determine which weight range the client falls into and apply the corresponding formula. For a client weighing 0-10 kg, the fluid requirement is 100 mL/kg/day. For a client weighing 10-20 kg, the fluid requirement is 1000 mL/day plus 50 mL/kg/day for every kg > 10. In this case, since the client weighs 16.7 kg, and falls into the 10-20 kg range, the calculation would be:
Fluid requirement = 1000 mL/day + (50 mL/kg/day x (16.7 kg - 10 kg))
= 1000 mL/day + (50 mL/kg/day x 6.7 kg)
= 1000 mL/day + 335 mL/day
= 1335 mL/day
Therefore, the client needs approximately 1335 mL of fluid per day.