You can't have a diagnosis that says "Risk for Infection" for an actual infection. By the nature of saying "Risk for", the nursing diagnosis is a
potential problem. So, your little patient either has, or doesn't have an infection. You said he was admitted with septic shock. That's an infection with shock. For an actual infection, you need to look at the signs and symptoms displayed by the patient to decide on the proper nursing diagnosis since there is no NANDA diagnosis for infection. Infection is a medical diagnosis.
Other possible nursing diagnoses you could use are:
- Ineffective Tissue Perfusion R/T decreased systemic vascular resistance
- (Risk for) Impaired Gas Exchange R/T meconium aspiration and/or excess production of mucus
- Ineffective Thermoreguloation R/T infectious process
- Imbalanced Nutrition: less than body requirements R/T poor sucking reflex
- Ineffective Protection R/T inadequately functioning immune system