Compare conditions

Put any two — or three — conditions side by side, adult or pediatric, to spot the look-alike differences fast, row by row.

Generalized Anxiety Disorder

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In one line

·Worry that lasts more than six months, happens most days, and makes normal life hard.

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Normal physiology

·A healthy brain keeps worry in check through a balance of calming and focusing chemical messengers—serotonin (steadies mood), norepinephrine (sharpens attention), and GABA (the brain's main brake signal)—working together in the prefrontal cortex (the front part of the brain that thinks things through) and the amygdala (the alarm center that flags danger).

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What goes wrong

·In Generalized Anxiety Disorder, the levels of serotonin, norepinephrine, and GABA drop too low in the prefrontal cortex, so it loses the power to calm the amygdala. The amygdala stays on high alert all the time, flooding the body with stress hormones even when there's no real danger. Chronic life stress—trauma, poverty, loneliness, unsafe housing—makes the chemical imbalance much worse and keeps the cycle locked in.

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Hallmark signs

·Worrying most days for at least 6 months that's hard to stop or control
·Feeling restless, wound-up, or on edge
·Getting tired easily or feeling worn out
·Trouble concentrating or mind going blank
·Being irritable or on a short fuse
·Muscle tension, aches, or jaw clenching
·Trouble falling asleep, staying asleep, or restless sleep
·Physical symptoms like fast heartbeat, sweating, shaking, or upset stomach that happen often

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Red flags · escalate now

·Any thought of harming yourself or ending your life—get help right away.
·New chest pain, trouble breathing, or feeling like you might pass out during anxiety (could be a heart or lung problem, not just anxiety).
·Sudden confusion, slurred speech, or weakness on one side of the body (could be a stroke, not anxiety).
·Can't eat, drink, or sleep for days because of the anxiety, or losing dangerous amounts of weight.
·Using alcohol or drugs daily to cope with the worry or calm down.

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Workup

·TSH (thyroid-stimulating hormone) and free T4
·12-lead electrocardiogram (ECG)
·Complete blood count (CBC)
·Comprehensive metabolic panel (CMP) including glucose and electrolytes
·Urine drug screen (UDS)
·GAD-7 questionnaire (7-item Generalized Anxiety Disorder scale)

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Treatment

·Start SSRI (sertraline 50–200 mg daily or escitalopram 10–20 mg daily) or SNRI (venlafaxine extended-release 75–225 mg daily) + weekly cognitive-behavioral therapy (CBT)
·Add buspirone 5–15 mg twice daily (increase slowly up to 30 mg twice daily if needed) after 2–4 weeks if SSRI or SNRI alone is not enough
·Prescribe pregabalin 150–300 mg daily (divided into two or three doses) or hydroxyzine 25–50 mg at bedtime if SSRI or SNRI plus buspirone fails after 12 weeks
·Use benzodiazepines (lorazepam 0.5–1 mg or alprazolam 0.25–0.5 mg) ONLY for acute crises or bridge therapy while waiting for SSRI or SNRI to work (maximum 2–4 weeks)
·Treat sleep problems and address housing instability, food insecurity, or substance use on the same timeline (sleep hygiene protocol, case management referral, housing support, substance use treatment)
·Teach graded exposure (facing worry triggers step by step in safe doses) and cognitive restructuring (reframing catastrophic thoughts) in every therapy session

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NCLEX trap

·Generalized Anxiety Disorder needs an SSRI (a medicine that raises serotonin, the brain's steady-mood messenger) or SNRI (a medicine that raises serotonin and norepinephrine, two calming messengers) as the first medicine, PLUS talk therapy at the same time. Benzodiazepines (medicines like alprazolam that quickly quiet the brain's alarm center, the amygdala) work fast but cause addiction and only cover up the problem without fixing the broken circuit. Use them only for 2–4 weeks while the SSRI takes effect. Fix brain chemistry and thinking patterns together, or fix neither.
·Generalized Anxiety Disorder is not something you can talk away with reassurance. The circuit between the amygdala (the alarm center) and the prefrontal cortex (the part that quiets the alarm) is stuck. Worry will come back minutes after reassurance wears off. You must screen with the GAD-7 questionnaire (a 7-question tool that scores how bad the anxiety is) and then offer medicine plus therapy.
·Generalized Anxiety Disorder is diagnosed by pattern (worry most days for 6 months, plus 3 body symptoms like muscle tightness or poor sleep) and screening score, not by hunting for hidden disease. You DO need to rule out hyperthyroidism (overactive thyroid gland that speeds the body), heart arrhythmias (irregular heartbeat), and pheochromocytoma (a rare tumor that dumps adrenaline)—but if those tests are normal and the pattern fits, the diagnosis is Generalized Anxiety Disorder. Do not keep ordering tests to avoid the real answer.
·Generalized Anxiety Disorder needs medicine PLUS talk therapy (cognitive-behavioral therapy that teaches the brain new ways to think about danger) PLUS social support (safe housing, steady sleep place, job help, friend or family ties). Treating only the brain pill and ignoring life stressors—money trouble, unsafe home, bad work hours—means the person will still struggle because the outside alarm keeps ringing.
·Generalized Anxiety Disorder takes 4–6 weeks to respond to an SSRI because the medicine has to rebuild serotonin pathways in the brain slowly. Give it time. After 6 weeks with no improvement, THEN you can add buspirone (a different calming medicine that works on serotonin receptors) or switch to an SNRI (like venlafaxine, which raises both serotonin and norepinephrine). Jumping too fast means you throw away a medicine that could have worked.
·Generalized Anxiety Disorder often hides alcohol use disorder (drinking to quiet the alarm but creating addiction). Alcohol temporarily raises GABA (the brain's main calming chemical) but then crashes it, making anxiety worse the next day. You must screen for and treat both at the same time—SSRI or SNRI for the anxiety, plus alcohol counseling or detox support—or neither will get better. Missing this trap means you send the person home still sick and drinking.

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