Psychiatric Evaluation

Is It Depression or Bipolar Disorder? Why Evaluations Check First

By Dr. Stacey Forbes, DNP, APRN, PMHNP-BC · Updated October 12, 2026

If you come to a psychiatric evaluation with depression, expect questions about times you felt the opposite: unusually energetic, needing little sleep, talking fast, taking risks. That is not a detour. Depression on its own and the depressive phase of bipolar disorder can look nearly identical, yet the treatment differs, and antidepressants used alone in bipolar disorder can trigger mania. That is why FDA-approved antidepressant labels tell prescribers to screen for bipolar disorder first. Here is what that screening involves, the signs people tend to miss, and how you can help get the answer right.

Why the question comes before any antidepressant

Antidepressant labeling is explicit. The current FDA-approved label for sertraline (Zoloft), for example, says that before starting it “or another antidepressant, screen patients for a personal or family history of bipolar disorder, mania, or hypomania,” and warns that in people with bipolar disorder, treating a depressive episode with an antidepressant “may precipitate a mixed/manic episode.” Similar language appears across antidepressant labels.

NIMH makes the same point from the treatment side: antidepressants are not used alone for bipolar disorder because they can trigger a manic episode or rapid cycling. Getting the diagnosis right first protects you from a treatment that could make things worse, and points toward one more likely to help. The questions are part of a careful integrative psychiatric evaluation, not a sign that the clinician doubts you.

Why bipolar disorder hides inside depression

Most people seek help when they feel low, not when they feel unusually good. NIMH notes that people with bipolar II disorder may seek help only for depressive episodes, and that hypomanic episodes may go unnoticed. If nobody asks about the highs, the picture looks like depression alone.

A few terms, as NIMH defines them:

• Bipolar I involves manic episodes lasting at least seven days, or severe enough to need hospital care. Depressive episodes usually occur too.
• Bipolar II is a pattern of depressive episodes and hypomanic episodes, without full mania.
• Hypomania is like mania but less severe, and usually interferes less with daily life.
• Cyclothymia involves recurring hypomanic and depressive symptoms that are too mild or brief to count as full episodes.
• A mixed episode has manic and depressive symptoms at the same time, such as feeling hopeless while racing and unable to sleep.

Depression itself, per NIMH, means symptoms most of the day, nearly every day, for at least two weeks. What separates the diagnoses is not how bad the lows are, but whether there have ever been highs.

Hypomania signs people tend to miss

Hypomania often does not feel like a problem from the inside. People describe it as a great week, a creative burst, or finally having energy. That is exactly why evaluations ask about it in concrete terms.

The first item is the one clinicians weigh most: NIMH lists decreased need for sleep among the core symptoms of a manic episode. Needing less sleep and not missing it is different from being unable to sleep and feeling exhausted.

Questions an evaluation will ask

1. Have you ever had a stretch of days when you felt unusually energetic, confident or “wired,” different from your usual self?
2. During that time, did you need much less sleep and still feel fine?
3. Did other people notice a change in you?
4. Have you ever spent money, made decisions or taken risks in a way you later regretted and that felt out of character?
5. Has an antidepressant ever made you feel agitated, revved up, unable to sleep, or more irritable rather than better?
6. Has anyone in your family been diagnosed with bipolar disorder, had periods like these, struggled with alcohol, or died by suicide?

The antidepressant question matters a lot. The APA’s evaluation guideline notes that symptoms emerging during treatment, such as hypomania or mania in a patient being treated for depression, may require reassessment of the diagnosis. If that happened to you, say so even if it was years ago.

Family history is a real clue

NIMH states that bipolar disorder often runs in families and that this is mostly explained by heredity, and its description of diagnosis includes family history alongside symptom severity, length and frequency. The antidepressant label likewise asks about family history, not just personal history.

A family history does not mean you have bipolar disorder, and its absence does not rule it out. It shifts how carefully the clinician looks and how cautiously treatment begins. If you can, ask relatives before your visit; how to prepare for a psychiatric evaluation has a short list of family questions.

Other things that can look like either one

Not every high or low is a mood disorder. NIMH notes that some health conditions, such as thyroid disease, can cause symptoms like those of bipolar disorder. Steroid medicines, stimulants, heavy caffeine, alcohol and drug use or withdrawal, and severe sleep loss can all push mood up or down. ADHD, anxiety and trauma can also produce restlessness and racing thoughts that look like hypomania from the outside.

That is why a whole-person evaluation asks about your body and your medicines, and may recommend labs. For the medical side, see medical conditions that can look like anxiety, depression or ADHD and thyroid health and mood.

Mood tracking: data a single visit cannot give

NIMH suggests keeping a life chart or mood journal to help recognize mood swings. A few weeks of simple tracking can settle questions that memory cannot. Keep it to under a minute a day:

• Hours slept, and whether you felt rested
• Mood on a simple scale from very low to very high, with “normal” in the middle
• Energy and how much you got done
• Irritability, and anything unusual: spending, risk, alcohol
• Medication changes, illness, menstrual cycle, major events

Bring a summary to follow-ups. The same log is useful once treatment starts, as described in measuring psychiatric medication response.

When the answer is “not sure yet”

Sometimes the history is unclear: one possible hypomanic week years ago, a family member with an uncertain diagnosis. In that case a clinician may name a provisional diagnosis, choose a cautious plan, and watch closely, with mood tracking and earlier follow-up. That is honest uncertainty, not indecision.

If bipolar disorder is diagnosed, treatment usually centers on mood stabilization, with sleep protection and careful monitoring. See bipolar disorder treatment and mood stabilizers for how Willow & Stone approaches it.

Common Questions

Sources & Further Reading

• DailyMed — ZOLOFT (sertraline) prescribing information, sections 2 and 5.4
• NIMH — Bipolar Disorder
• NIMH — Depression
• American Family Physician — APA updates guidelines on psychiatric evaluation in adults (2016)

This article is general education, not a diagnosis or advice for your situation. Only a clinician who has evaluated you can diagnose a condition or recommend treatment.