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What Are Additional Tests Conducted Before Ketamine Infusion Therapy?

As we know ketamine is an anesthetic drug that is effectively and safely used in hospitals worldwide. The drug is now also used in sub-anesthetic dosage to treat chronic depression in people belonging to different age groups.

Before you receive the ketamine infusion therapy, there are some additional test administered by your psychiatrist to finally ascertain if you meet the exclusion/inclusion criteria. These additional tests include;

Patient Health Questionnaire-9 (PHQ-9)

The PHQ-9 is actually a 1-2 minutes brief and self-administered test. It is conducted to measure the depression severity in the patient and his/her response to treatment.

Montgomery-Asbury Depression Rating Scale (MADRS)

It is a well-established test that helps in ascertaining the degree of depression you have. In this, your psychiatrist is likely to ask you a few questions.

Columbia Suicide Severity Rating Scale (CSSRS)

It is a proper test that helps your psychiatrist in to determine the severity of suicidal thoughts that might be occurring or experienced by you.

Clinical Global Impressions Scale (CGI)

It is also a short 1-2 minute test that involves a few questions to determine the severity of depressive symptoms and patient’s improvement during the treatment.


Oftentimes, the results obtained from these tests are hard to interpret. For this reason, always look for a professional and renowned psychiatrist to receive ketamine infusion therapy.

These tests are not mandatory. If needed, your psychiatrist will discuss this at the screening visit. Once you clear the inclusion/exclusion criteria, you are asked to fill the medical history information form so that your anesthesiologist shall start with ketamine infusions.

These forms provide screening information to determine if you can be given ketamine infusion therapy in an office setup or it should be delivered in a hospital setting due to a medical disorder. It also helps in ascertaining if you are actually the right candidate to receive ketamine infusion therapy altogether.


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