# A nurse is assessing a 6-year-old child suspected of having growth hormone deficiency. Which assessment finding would be most indicative of this condition? > source: MyMerci (mymerci.kr) > url: https://mymerci.kr/pages/nclex_q.php?qn_id=542030 > language: ko > subject: Child Health ## 문제 A nurse is assessing a 6-year-old child suspected of having growth hormone deficiency. Which assessment finding would be most indicative of this condition? ## 보기 1. Height above the 97th percentile for age with increased arm span 2. Bone age delayed by 2 or more years on radiographic examination 3. Height below the 3rd percentile for age with normal body proportions **✔ 정답** 4. Early onset of secondary sexual characteristics with tall stature **정답: 3** ## 해설 Growth hormone deficiency is characterized by short stature (height below 3rd percentile) with normal body proportions, distinguishing it from other growth disorders. Other options represent findings of obesity, advanced maturation, or precocious puberty. ## 심화 해설 Understanding the Condition Growth hormone deficiency (GHD) in children primarily manifests as a deceleration of linear growth, leading to short stature. The pathophysiology involves inadequate secretion of growth hormone from the anterior pituitary gland, which normally stimulates the production of insulin-like growth factor-1 (IGF-1) and directly acts on the epiphyseal growth plates of long bones. When this axis is disrupted, skeletal growth slows significantly, but body proportions remain relatively normal. This is a key differentiator from skeletal dysplasias or genetic syndromes, which often present with disproportionate short stature. Analysis of Assessment Findings For a 6-year-old child with suspected GHD, the most indicative assessment finding is a height significantly below the expected range for age, coupled with normal body proportions. The diagnostic criteria for short stature is typically a height below the 3rd percentile on standardized growth charts. The preservation of normal body proportions occurs because the deficiency affects all long bones symmetrically, unlike conditions such as rickets or achondroplasia. The provided evidence supports this clinical picture. In the case report by Meller et al., a 12-year-old female with newly diagnosed panhypopituitarism, which includes GHD, presented with a height at the 6th percentile and a severely reduced growth velocity of 0.75 cm/year [1]. This illustrates that even in late-onset presentations, the hallmark is a progressive drop-off in height percentiles, often falling below the 3rd percentile over time if untreated. Why Other Options Are Incorrect - Option 1: Height above the 97th percentile with increased arm span is characteristic of tall stature conditions, such as Marfan syndrome or homocystinuria, not a deficiency state. - Option 2: While a delayed bone age is a classic finding in GHD, it is not the most indicative finding on initial physical assessment. The case report by Meller et al. noted a bone age consistent with chronological age at presentation, demonstrating that bone age delay can be variable and is a radiographic, not a physical assessment, finding [1]. The study by Gider et al. on somatrogon treatment tracked the bone age/chronological age (BA/CA) ratio as a marker of treatment response, confirming its relevance but secondary nature to the primary finding of short stature . - Option 4: Early onset of secondary sexual characteristics with tall stature suggests precocious puberty. In precocious puberty, initial growth acceleration leads to tall stature in childhood, but paradoxically results in premature epiphyseal closure and a compromised final adult height. This is the opposite of the growth pattern in isolated GHD. Clinical Application and Diagnostic Confirmation When a nurse identifies a height below the 3rd percentile with normal body proportions, the next steps in the diagnostic process involve auxological monitoring and biochemical testing. A critical measurement is growth velocity, calculated over at least 6 months. A subnormal growth velocity, such as the 0.75 cm/year documented in the panhypopituitarism case, is a strong indicator of a pathological growth disorder [1]. Definitive diagnosis relies on GH stimulation testing and measurement of IGF-1 levels, which serve as a surrogate marker of GH secretion. The real-world study on somatrogon efficacy highlights the importance of monitoring IGF-1 levels and the BA/CA ratio to confirm the diagnosis and track the anabolic response to recombinant GH therapy .References (research sources) - [1]Impact of growth hormone treatment on a 12-year-old female with newly diagnosed panhypopituitarism and distal arthrogryposis.Research articleMeller LLT, Akkad G, Patterson M. (2026) · DOI: 10.1530/edm-25-0146 ## 임상 시나리오 Clinical Assessment Guide: Pediatric Growth Hormone Deficiency This guide outlines the key clinical features and diagnostic approach for a child with suspected growth hormone deficiency (GHD). The hallmark is proportionate short stature with a decelerating growth velocity. Key Assessment Findings - **Growth Parameters:** Height below the 3rd percentile for age and sex on standardized growth charts. A critical finding is a declining growth velocity (e.g., less than 5 cm/year in school-aged children). - **Body Proportions:** Normal upper-to-lower body segment ratio. This differentiates GHD from skeletal dysplasias (e.g., achondroplasia) which present with disproportionate short stature. - **Physical Examination:** May reveal a cherubic facies, central adiposity, and delayed dentition. Hypoglycemia may be present in neonates and young infants with severe GHD. Differential Diagnosis & Diagnostic Workup - **Bone Age X-ray:** Typically delayed by 2 or more standard deviations. This is a supportive finding, not the primary physical assessment indicator. - **Laboratory Testing:** Screening with IGF-1 and IGFBP-3 levels. Definitive diagnosis requires GH stimulation testing (e.g., clonidine, arginine stimulation). - **Rule Out Other Causes:** Hypothyroidism, chronic illness (e.g., renal disease, celiac disease), and genetic syndromes (e.g., Turner syndrome in females) must be excluded. Nursing Considerations - Accurately measure and plot height, weight, and head circumference at every visit. Use the same equipment and technique for consistency. - Educate families that treatment involves daily subcutaneous injections of recombinant human growth hormone, which requires adherence and regular monitoring. - Provide psychosocial support, as short stature can impact a child's self-esteem and peer relationships. ## 핵심 개념 - **Growth Hormone Deficiency** — A condition where insufficient secretion of growth hormone (GH) from the anterior pituitary gland leads to reduced linear growth. Causes can be genetic, congenital, or acquired. - **Linear Growth** — Growth in body length, meaning an increase in height. The main action of growth hormone is to promote chondrocyte proliferation in the epiphyseal plate, thereby inducing linear growth. - **Bone Age** — Bone maturity assessed by taking radiographs of the wrist and hand. It is used to evaluate growth potential and endocrine disorders by comparing with chronological age. - **Percentile (Growth Chart)** — A scale that indicates the relative position of a child's measurements (height, weight) within a population of a specific age and gender on a growth chart. The 3rd percentile means the 3rd smallest value out of 100. - **Body Proportions** — Relative size of body parts (e.g., upper-to-lower body ratio, arm length-to-height ratio). It remains normal in growth hormone deficiency but may be abnormal in skeletal dysplasia or hypothyroidism. ## 같은 주제 문제 - [A nurse is assessing a 6-year-old child who is being evaluated for possible growth hormone…](https://mymerci.kr/pages/nclex_q.php?qn_id=542029) - [A nurse is assessing a 12-year-old adolescent with suspected hypothyroidism. 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