Requirements for Application for Emergency Medical Technician (EMT) Certification for Military Trained Applicants: Current and former Navy Corpsmen applying for Emergency Medical Technician (EMT) certification must meet requirements specified by the National Registry of Emergency Medical Technicians (NREMT).
Ectopic Pregnancy. An ectopic pregnancy can cause lower back pain and lower abdominal pain. An ectopic pregnancy occurs when a fertilized egg becomes implanted in a location outside the uterus.
(See also Overview of Digestive Symptoms.) Pain in the middle of the chest or upper back can result from disorders of the esophagus or from disorders of the heart or aorta (see Chest Pain). Symptoms may be similar. Gastroesophageal reflux disease (GERD), caused by stomach acid splashing up into the esophagus, can cause a burning sensation or a tightness under the breastbone (sternum), which may resemble the pain of heart disease.