For further diagnosis, imaging tests, such as duplex ultrasonography look at the blood flow in your veins to detect clots, computed tomographic pulmonary angiography (CTPA) looking at the blood vessels of your lungs, ventilation-perfusion (V/Q) looking at the oxygen in your lungs, a pulmonary angiography looking inside your veins, or magnetic resonance imaging (MRI) looking at your lungs
Here's how to use or take a vitamin B12 injection: Consult with your doctor: Before starting any new treatment, it's important to talk to your doctor
For a 1 mL vial at 5mg/mL concentration (5 mg total): For a 2 mL vial at 5mg/mL concentration (10 mg total): The 2 mL vial provides significantly better value per milligram at higher doses
Your healthcare provider or a nurse will teach you the correct mixing technique, how to draw up the dose, and how to inject safely
In the USA or UK, the health care systems consistently deny access of B12 shots to PA patients