Endocrinology Book

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Linear Growth Velocity

Aka: Linear Growth Velocity, Growth Velocity
  1. Indications
    1. Growth Assessment
    2. Assessment for collagen bone disease
  2. Efficacy
    1. Single most important Growth Assessment screening tool
  3. Exam: Normal height increase
    1. Age <1 year: 10.0 inches (25 cm, range 23-27cm) growth/year
      1. Age <6 months: 16 to 17 cm growth/year
      2. Age 6-12 months: 8 cm growth/year
    2. Age 1 to 2 years: 4.0 inches (10 cm, range 10-14 cm) growth/year
    3. Age 2 to 3 years: 3.2 inches (8 cm) growth/year
    4. Age 3 to 4 years: 2.8 inches (7 cm) growth/year
    5. Age 4 to 10 years: 2.0-2.4 inches (5-6 cm) growth/year
    6. Prepuberty Nadir
      1. Age 10 year old girl: 2.2 inches (5.5 cm) growth/year
      2. Age 12 year old boy: 1.9 inches (4.9 cm) growth/year
    7. Pubertal Acceleration
      1. Girls: 3.15 to 4.72 inches (8-12 cm) growth/year
      2. Boys: 3.94 to 5.51 inches (10-14 cm) growth/year
  4. Interpretation: Abnormal Growth
    1. Growth/Year
      1. Age 3 years to Puberty: <1.75 inches (4.5 cm)
      2. Age 5 years to Puberty: <2 inches (5 cm)
    2. Minimum time interval between assessments
      1. Age <3 years: minimum 4 month interval
      2. Age >3 years: minimum 6 month interval

growth velocity (C2012658)

Concepts Finding (T033)
English growth velocity (physical finding), growth velocity
Sources
Derived from the NIH UMLS (Unified Medical Language System)


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