feedback for failure to thrive

I am doing a care plan on a 2 month old diagnosed with "Failure to Thrive"

My abnormal assessment findings include:

Skin-pale, dry

Color Lips-pale

Pale mucous membranes

Lack of interest in food

Abdominal pain (baby expresses by crying)

Weighs 8 lbs 3 oz for a 2 month old

loss of weight

poor muscle tone

inability to ingest food, vomits after most feedings

some constipation

exhibits hunger by crying

irritable baby

Has Hereditary Spherocytosis

ultrasound showed pt has pyloric stenosis. Surgery was performed.

Vitals are within normal range, heart-regular, lungs are clear, mucous membranes-moist

THE main problem is definately the vomiting, malnutrition, and dehydration(the abnormal lab values show this)

Here are my nursing Dx that I came up with and I would love feedback to see if I'm on the right track. I also prioritized them.

1. Imbalanced Nutrition less than body requirements r/t inability to ingest food secondary to pyloric sphincter obstruction AEB weighs 8 lbs 3 oz, loss of weight with adequate intake of (3oz q 3 hrs), vomits after most feedings.

2. Deficient Fluid Volume r/t vomiting, dehydration AEB abnormal lab values

3. Delayed Growth & Dvpt r/t failure to thrive and illness, nutritional deficiet AEB small weight for age (8lbs 3oz) in 2 months.

4. Acute Pain r/t recent surgery, dehydration, and malnutrition AEB Nausea, Vomiting, Loud Cry, Irritable

5. Risk for Infection R/F surgical wound AEB three stab sites with opsites

6. Anxiety r/t surgery and changes to the environment AEB

7. Ineffective Health Maintainence r/t inability of caregiver to judgements AEB lack of knowledge of child care by mother, and impaired support system (single mom)

8. Ineffective Coping r/t inadequate social support AEB mom & baby lives with mom's father, no family around, no family visitors besides friends, and inability to ask for help from aunt and uncle

9. Deficient Knowledge r/t lack of experience as a new mother, post-op expectations, & lifestyle changes AEB mother in late teens, 1st child.

(Also has social family issues as you can tell by some of the nursing dx; I wasn't for sure what nursing dx I could use.... Mother is unemployed, this is her 1st child, single mom, lives with father, not much family support)

I haven't done these in quite a while, so any input would be greatly appreciated. I'm pretty confident that they are okay, but I would like others feedback.