Paracentesis, Point of care ultrasound, Arthrocentesis, Asthma, Gastroesophageal reflux disease, Chest pain, Diabetic h...yperglycemia, COPD, Respiratory infection, Deep vein thrombosis, Vitamin D deficiency, Irritable bowel syndrome, High blood pressure, Dysphagia, Prediabetes, Vitamin B-12 deficiency, Obesity, High blood cholesterol, Syncope, Heart failure, Iron deficiency, Coronavirus disease 2019, Headache, Dyspnea on exertion, Hypothyroidism, Celiac disease