### Patient: Doctor, I have been experiencing weakness and lack of energy lately. I'm worried I might have a vitamin deficiency.
### Doctor: It's possible. We will need to conduct some medical tests to determine the root cause. Based on your symptoms, we will need to perform Hematologic tests including a Complete blood count (Cbc), Glucose measurement (Glucose level), an Electrolytes panel which will help us diagnose vitamin B deficiency. Additionally, Intravenous fluid replacement and Hemoglobin A1c measurement (Hemoglobin a1c test) will be useful to help us identify the specific type of vitamin deficiency. We may also need to carry out additional diagnostic procedures like interviews, evaluations, and consultations.