Is loperamide safe in 3 yr old baby?? If yes then how much dose??

33 yrs male patient came with the c/o 20-22days fever , semi-conscious Ness,and not passing flatus and faeces since 10 days. USG showing GB sludge and b/l hydronephrosis . corals markers negative, typhidot IgM +be, tenderness in abdomen(generalised). following ecg on 4th day, initially HR was 70bpm. shot and shot raised to 700 and 1700 ,s. alk phosphatase 500 . at present LFT is in decreasing trend. surgeon opinion taken,saying no intervention and started fluid intake. what could be the diagnosis and ecg. ,and management.

18 months,,male h/o diarrhoea 2days back,,since 1day red colour stools no diarrhoea ,abdominal distension present,,no urine output,,not accepting feeds ,drowsy..x ray erect abdomen.. diagnosis plzz

1.5 month old male baby presenting with c/o abdominal distention and loose stool for more than 20 days, has wide open fontanelle and some firm mass in both flanks seems to be fecal mass. no h/o blood in stool looks active. What all possibilities are there.

A 76 years female come to ER with complaints of abdominal pain, nausea and intermittent diarrhea since two days. Apparently, she usually has constipation for which she takes laxative. She doesn't have any significant medical problems like Diabetes, HTN or Hypothyroidism. CT scan reveal characteristic finding. Diagnosis and management.

A 29 year old female presented after experiencing 14 hours of nonbloody, bilious emesis and constant abdominal cramping along her lower abdomen. She reported that her symptoms worsen with oral intake and denies relieving factors. She has tried oxycodone/acetaminophen at home, without relief. She also notes new onset of watery, nonbloody diarrhea after arrival to the emergency department. Diagnose the USG of the patient and help in this case.