Isolated thrombocytopenia with bruising, petechiae, purpura or mucosal bleeding after a recent viral illness should trigger an early full blood count. Escalation depends on bleeding severity rather than the label alone, and platelet transfusion is reserved for life-threatening bleeding because correction is short lived.

Childhood leukaemia often presents as marrow failure rather than a single dramatic symptom. Fatigue, infections and bruising or petechiae together should trigger urgent blood testing, while unexplained petechiae or hepatosplenomegaly need immediate specialist assessment.

Iron deficiency anaemia in children is often hiding in the diet history. Microcytosis, low ferritin, pica and poor growth should prompt questions about excess cow’s milk, selective eating and menstruation, with treatment focused on oral iron plus correcting the cause.

Paediatric anaemia work-up starts with pattern recognition, not iron tablets alone. Reticulocyte count is the pivot: a raised count suggests haemolysis or blood loss, while a low count points towards reduced production and should trigger more targeted investigation.

Personality disorder assessment still starts with risk. Do not dismiss self-harm, suicidality or harm to others as 'just personality'; identify persistent interpersonal and emotional patterns, then prioritise psychological therapy and crisis planning over long-term sedative prescribing.

Developmental delay should be judged against thresholds, not reassurance alone. No words at 16 months or no sitting at 9 months warrants assessment, and early hand preference before 18 months can signal hemiplegic cerebral palsy rather than normal variation.

Eating disorders are missed when clinicians focus on weight alone. Parotid enlargement, dental erosion and Russell sign can indicate bulimia at normal weight, while more than five days of minimal intake should trigger refeeding-risk assessment before nutrition is restarted.

Social communication difficulty, language regression and rigid routines are the centre of this episode, which is the more focused paediatric listen today. It is most useful as a reminder to build the diagnosis from patterns across time and settings, not a single screening impression.

A reduced eGFR only becomes clinically useful when it is staged properly. This episode shows how urine albumin:creatinine ratio and chronicity turn abnormal bloods into chronic kidney disease risk, then links that stage to cardiovascular risk reduction, ACE inhibitor and SGLT2 choices, and referral thresholds.

Anaphylaxis turns a common allergic presentation into an ABCDE problem. Skin changes alone are not enough; stridor, wheeze, hypotension, collapse or confusion after exposure should trigger intramuscular adrenaline, then reassessment after 5 minutes.