managing-failure-to-thrive
Structures FTT evaluation with growth curve analysis, caloric calculations, and workup algorithms. Use when evaluating poor growth, calculating caloric needs, or managing failure to thrive.
Best use case
managing-failure-to-thrive is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
Structures FTT evaluation with growth curve analysis, caloric calculations, and workup algorithms. Use when evaluating poor growth, calculating caloric needs, or managing failure to thrive.
Teams using managing-failure-to-thrive should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/managing-failure-to-thrive/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How managing-failure-to-thrive Compares
| Feature / Agent | managing-failure-to-thrive | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
Structures FTT evaluation with growth curve analysis, caloric calculations, and workup algorithms. Use when evaluating poor growth, calculating caloric needs, or managing failure to thrive.
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
SKILL.md Source
# Managing Failure To Thrive Structures the evaluation and management of failure to thrive (FTT) using WHO/CDC growth chart analysis, caloric requirement calculations, stepwise diagnostic workup, and multidisciplinary intervention planning. Differentiates organic from non-organic etiologies and establishes catch-up growth targets. ## Why This Skill Exists Failure to thrive affects 5-10% of young children in primary care settings and is the presenting concern in up to 5% of pediatric hospital admissions. The term describes inadequate growth rather than a diagnosis — and the underlying cause ranges from underfeeding to celiac disease to psychosocial deprivation. Most cases (> 80%) are non-organic, yet providers must systematically exclude organic causes. This skill enforces a structured approach: define the growth pattern, calculate caloric deficits, apply a tiered workup, and build a multidisciplinary catch-up plan. --- ## Checkpoint A — Intake Verification ### Required Intake Questions 1. What is the child's age, sex, birth weight, and current weight/length/head circumference? 2. What is the growth trajectory — are historical growth data points available? 3. What is the feeding history (breast/bottle/solids, volumes, frequency, duration of feeds)? 4. What is a typical 24-hour dietary recall (for children on solids)? 5. Does the child have vomiting, diarrhea, or dysphagia? Frequent infections? 6. What is the family structure, food security status, and caregiver stress level? 7. Was the child born preterm? Are there known genetic syndromes or chronic conditions? 8. What is the parental stature (mid-parental height calculation for genetic growth potential)? ### Required Documents - Serial growth measurements (minimum 3 data points over time preferred) - Growth chart plots on WHO (< 2 years) or CDC (2-20 years) standards - Feeding log or dietary recall - Prior lab results (if any workup has been done) - Social work or home visit notes (if applicable) > FTT is defined by growth pattern, not a single measurement. At least 2-3 data points over time are needed to establish a trajectory. --- ## Step 1 — Growth Pattern Classification ### Defining FTT (Use ANY of the Following) - Weight < 2nd percentile (WHO) for age and sex - Weight-for-length < 2nd percentile - Weight crossing downward across 2 or more major percentile lines (95th, 90th, 75th, 50th, 25th, 10th, 5th) - Weight velocity < 5th percentile for age over a defined interval - Weight-for-age < 80% of median (Gomez classification: mild 75-90%, moderate 60-74%, severe < 60%) ### Growth Pattern Differential | Pattern | Weight | Length | Head Circumference | Suggests | |---------|--------|--------|-------------------|----------| | Acute undernutrition | Decreased | Normal | Normal | Caloric insufficiency (most common) | | Chronic undernutrition | Decreased | Decreased | Normal | Prolonged caloric or protein deficit | | Severe/genetic | Decreased | Decreased | Decreased | Genetic syndrome, congenital infection, severe early deprivation | ### Mid-Parental Height Calculation - Boys: (maternal height + paternal height + 13 cm) / 2 ± 8.5 cm - Girls: (maternal height + paternal height - 13 cm) / 2 ± 8.5 cm - Plot target height range on growth chart to differentiate FTT from familial short stature --- ## Step 2 — Caloric Needs Calculation ### Estimated Energy Requirements (EER) | Age | kcal/kg/day (normal growth) | |-----|-----------------------------| | 0-3 months | 100-120 | | 3-6 months | 90-100 | | 6-12 months | 80-95 | | 1-3 years | 75-90 | | 4-6 years | 70-80 | ### Catch-Up Growth Requirement **Catch-up kcal/kg/day = (EER for age × ideal weight for height) / actual weight** Example: 9-month-old, actual weight 6 kg, ideal weight for height 8.5 kg - Catch-up calories = (90 × 8.5) / 6 = 127.5 kcal/kg/day based on actual weight ### Catch-Up Protein - Catch-up protein (g/kg/day) = (protein RDA × ideal weight for height) / actual weight - Minimum 2-3 g/kg/day protein for catch-up; higher for severe malnutrition ### Practical Fortification Strategies - Breast milk fortification: add human milk fortifier (for NICU-discharged infants) or supplement with formula after breastfeeding - Formula concentration: advance from 20 to 22 to 24 kcal/oz (monitor for osmolar diarrhea) - Solid food enrichment: add butter, oil, cheese, avocado to increase caloric density - Oral supplements: PediaSure (30 kcal/oz), Duocal, MCT oil for high caloric density --- ## Step 3 — Tiered Diagnostic Workup ### Tier 1 — Initial Screen (All FTT Patients) - CBC with differential - CMP (electrolytes, BUN, creatinine, glucose, albumin, calcium, phosphorus, LFTs) - Urinalysis and urine culture - Lead level (if age 1-5 years or risk factors) - Consider: TSH, celiac panel (tTG-IgA + total IgA) ### Tier 2 — Directed by History/Exam Findings | Clue | Test | |------|------| | Chronic diarrhea, bloating | Celiac panel, stool elastase (pancreatic insufficiency), stool O&P, stool calprotectin | | Frequent infections | HIV, immunoglobulin levels, CBC with manual diff | | Vomiting | UGI series (malrotation, reflux), pH probe | | Dysmorphic features | Chromosomal microarray, targeted genetic testing | | Developmental delay | Genetic evaluation, metabolic screen (amino acids, organic acids) | | Polyuria, polydipsia | Renal function, urine specific gravity, glucose | | Family history of CF | Sweat chloride test | ### Tier 3 — Subspecialty Evaluation - Pediatric GI: persistent diarrhea, suspected IBD, eosinophilic esophagitis, need for endoscopy - Pediatric endocrine: growth velocity < 5 cm/year with normal nutrition, suspected GH deficiency - Genetics: dysmorphic features, global delay, suspected syndromic cause - Social work: food insecurity, neglect concern, caregiver mental health > Fewer than 5% of FTT cases have an identifiable organic cause on initial labs. Over-testing without clinical indication adds cost without yield. --- ## Step 4 — Multidisciplinary Intervention Plan ### Nutritional Intervention - Set specific caloric targets based on catch-up calculation (Step 2) - Provide written feeding plan with meal/snack schedule and portion guidance - Involve dietitian/nutritionist for ongoing counseling - Schedule weight checks: weekly for severe FTT, every 2 weeks for moderate, monthly for mild ### Behavioral Feeding Strategies - Structured mealtimes (3 meals + 2-3 snacks; no grazing) - Limit juice to 4 oz/day; no calorie-free beverages during meals - Offer calorie-dense foods first before low-density options - Avoid food battles; neutral mealtime environment - Feeding therapy referral for oral motor dysfunction, food aversion, or texture sensitivity ### Psychosocial Support - Screen for caregiver depression (Edinburgh, PHQ-9) - Assess food security (2-item Hunger Vital Sign: "Within the past 12 months, we worried whether our food would run out..." and "...the food we bought just didn't last...") - Connect to WIC, SNAP, food banks as appropriate - Social work referral for suspected neglect, domestic violence, or housing instability ### Hospitalization Criteria - Severe malnutrition (weight < 60% ideal body weight) - Dehydration or electrolyte abnormalities - Failure to gain weight after 2-3 months of outpatient intervention with confirmed adequate intake - Suspected abuse or neglect requiring safe placement - Need for observed feeding and calorie counts in controlled environment --- ## Step 5 — Monitoring and Catch-Up Targets ### Expected Weight Gain Velocity | Age | Expected Weight Gain (g/day) | |-----|------------------------------| | 0-3 months | 25-35 | | 3-6 months | 15-20 | | 6-12 months | 10-15 | | 1-3 years | 5-10 | | 4-6 years | 5-7 | ### Catch-Up Growth Monitoring - Weight gain should exceed normal velocity by 2-3× during catch-up phase - Weight catch-up typically precedes length catch-up by weeks to months - Head circumference catch-up is slowest and may not fully recover in severe cases - Refeeding syndrome risk: monitor phosphorus, magnesium, and potassium in severely malnourished children when refeeding — especially in the first 7-10 days --- ## Checkpoint B — FTT Management Review - [ ] Growth parameters plotted with trajectory documented (weight, length, HC) - [ ] FTT classification stated (acute vs. chronic, severity grade) - [ ] Caloric needs calculated with catch-up target specified - [ ] Feeding plan created with specific kcal/day goal and strategies - [ ] Tier 1 labs ordered or reviewed - [ ] Directed workup ordered based on clinical clues (if applicable) - [ ] Psychosocial assessment completed (food security, caregiver mental health) - [ ] Subspecialty referrals placed where indicated - [ ] Weight check schedule established - [ ] All [VERIFY] flags resolved or escalated --- ## Quality Audit | Item | Requirement | Pass? | |------|-------------|-------| | Growth data | ≥ 2-3 data points plotted on WHO/CDC chart | | | FTT definition met | Documented criteria used to define FTT | | | Caloric calculation | Catch-up kcal/kg/day calculated with formula shown | | | Feeding plan | Written plan with kcal target and practical strategies | | | Lab appropriateness | Tier 1 labs obtained; Tier 2 only with clinical indication | | | Mid-parental height | Calculated and plotted to exclude familial short stature | | | Food security screen | 2-item Hunger Vital Sign administered | | | Follow-up plan | Weight check interval specified | | | Refeeding risk | Electrolyte monitoring planned if severe malnutrition | | | No unexplained [VERIFY] tags | All flagged items resolved or escalated | | --- ## Guidelines - Use WHO growth standards (birth to 2 years) and CDC growth charts (2-20 years) per AAP recommendation - Apply Gomez classification for severity grading of protein-energy malnutrition - Follow AAP guidance on diagnosis and management of FTT/pediatric undernutrition - Caloric catch-up formula: (EER × ideal weight for current length) / actual weight - Follow ESPGHAN guidelines for nutritional rehabilitation in pediatric undernutrition - WIC (Women, Infants, and Children) program: refer all eligible families - Hunger Vital Sign (2-item food insecurity screen) validated for pediatric populations - Refeeding syndrome protocols: monitor electrolytes closely when initiating feeds in severely malnourished children - Mandatory reporting obligation: if FTT is due to suspected neglect, file with Child Protective Services per state law - This skill produces clinical documentation; it does not replace clinical judgment
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