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Diagnostic Testing Specialist

Calabasas Medicine

Daniel Rosen, MD

Concierge Medicine & Board Certified Internal Medicine Physician located in Calabasas, CA

Diagnostic testing saves lives, as detecting diseases early can prevent serious medical complications in the future. At Calabasas Medicine in Calabasas, California, board-certified internal medicine physician Daniel Rosen, MD, and his experienced medical team offer diagnostic testing as part of comprehensive evaluations and preventive medicine. Schedule an appointment with Calabasas Medicine by phone or online today.

Diagnostic Testing Q & A

What is diagnostic testing?

Diagnostic testing helps Dr. Rosen diagnose an illness or disease and offer the most appropriate treatment. Various forms of diagnostic testing are available at Calabasas Medicine. If the diagnostic test you require isn’t available on-site, Dr. Rosen refers you to a quality testing facility nearby.

What are common diagnostic tests?

Common diagnostic tests you might require based on your symptoms or risk factors include:

Blood test

During a blood test, your practitioner uses a tiny needle to take a sample of your blood. The sample is sent to a lab for analysis to detect diseases, hormone imbalances, or vitamin and mineral deficiencies.


X-rays use electromagnetic waves to create images of structures, including bones and organs, inside your body.

Computer imaging

Examples of computer imaging diagnostic tests include CT scans, PET scans, and MRIs. These noninvasive procedures utilize computers to achieve specific, targeted imaging results of structures within your body.


Ultrasound uses sound waves to create images of internal organs and tissues within your body to help Dr. Rosen diagnose medical conditions.


During a biopsy, your provider removes a small amount of tissue from specific areas of your body. The sample is submitted to a lab for analysis. Biopsies are common diagnostic testing procedures used for cancer, including skin cancer.

Urine test

After you provide a urine sample, Dr. Rosen sends the sample to a lab for analysis.

Stress test

During a cardiac stress test, your practitioner uses electrodes and a blood pressure cuff to evaluate your heart’s function and activity during exercise.


A colonoscopy is a procedure in which your doctor uses a tiny scope with a camera attached to it to view the inside of your colon and screen for growths that could be cancerous.

Is diagnostic testing painful?

Most diagnostic tests aren’t painful. During imaging tests, such as X-rays and MRIs, you don’t feel a thing. With a blood test, you feel pressure or a pinch when your provider punctures the skin. Most biopsies aren’t painful, as your practitioner can use an anesthetic to numb the area before the procedure. There’s often no downtime associated with diagnostic testing.

Will I require diagnostic testing?

After thoroughly reviewing your medical history and completing an exam, Dr. Rosen lets you know which diagnostic test, if any, is right for you. If you experience signs or symptoms of a disease, you might be a good candidate for such tests. Examples include:

  • Frequent urination
  • Unexplained weight gain or weight loss
  • Suspicious looking skin spots
  • Hair or skin changes
  • Fatigue
  • Shortness of breath
  • Dizziness
  • Chronic pain

Dr. Rosen might recommend diagnostic testing because of your age or other chronic disease risk factors.

A proper diagnosis is crucial for receiving quality medical care. To learn more about diagnostic testing, schedule an appointment with Calabasas Medicine by phone or online today.