Pathophysiology & Risk Factors

Schizophrenia is a chronic psychotic disorder whose symptoms split into two camps NCLEX leans on hard: POSITIVE symptoms are an excess or distortion of normal function (things added that shouldn't be there), while NEGATIVE symptoms are deficits subtracted from baseline personality and functioning. Positive symptoms usually respond well to antipsychotics and dominate acute episodes; negative symptoms are more treatment-resistant, often appear before the first psychotic break, persist after positives are controlled, and are the primary driver of long-term disability.

Positive vs negative symptoms — the discriminator

Positive (added)Negative (subtracted)

ExamplesHallucinations, delusions, disorganized speech/behaviorFlat affect, alogia, avolition, anhedonia, asociality (5 A's)

Effect on functionDistorts reality — adds experiences not presentRemoves normal emotion, speech, and motivation

Response to antipsychoticsRespond well to antipsychotics (typical and atypical comparable)Treatment-resistant; atypicals (clozapine) only modestly better

Nursing approachPresent reality without arguing; assess hallucination content for safetyExternal structure, daily prompting, positive reinforcement, brief concrete language

Positive (added)

Examples: Hallucinations, delusions, disorganized speech/behavior
Effect on function: Distorts reality — adds experiences not present
Response to antipsychotics: Respond well to antipsychotics (typical and atypical comparable)
Nursing approach: Present reality without arguing; assess hallucination content for safety

Negative (subtracted)

Examples: Flat affect, alogia, avolition, anhedonia, asociality (5 A's)
Effect on function: Removes normal emotion, speech, and motivation
Response to antipsychotics: Treatment-resistant; atypicals (clozapine) only modestly better
Nursing approach: External structure, daily prompting, positive reinforcement, brief concrete language

Signs & Symptoms

EarlyProgresses →

Flat affect

near-complete absence of expression; differs from blunted (reduced but present)

Alogia

poverty of speech — brief empty replies; not mutism or sedation

Late / Severe

Avolition

absent motivation for goal-directed activity and self-care

Anhedonia

loss of pleasure in previously enjoyed activities

Asociality

withdrawal from social interaction

Other findings

Auditory hallucinations Hallmark

most common type (~60-80%); document content, especially commands

Visual hallucinations

atypical for schizophrenia — raises suspicion for an organic cause

Persecutory delusion

fixed false belief others intend harm; most common delusion type

Grandiose delusion

belief in special powers or importance

Referential delusion

belief that external events carry personal messages

Disorganized speech

loose associations, tangentiality, neologisms, word salad

Disorganized or catatonic behavior

Interventions & Priorities

Assess hallucination content for commands

ask directly what the voices say and whether they give instructions — screens for command hallucinations

Present reality without arguing

acknowledge distress, state 'I don't hear the voices' — never validate or debate the delusion

Acknowledge feeling, not delusional content

validate the emotion; offering transparency (let client watch meds opened) builds trust

Redirect to reality-based present-moment activity

competes with hallucinatory stimuli

Use brief, concrete statements

matches limited communication capacity; offer simple choices

Establish structured daily schedule

external structure compensates for avolition; do NOT use unstructured free time

Positive reinforcement for self-care

rewards small successes to build motivation incrementally

Treatments & Medications

First-generation (typical) antipsychotics

primarily target positive symptoms; minimal effect on negative symptoms

Second-generation (atypical) antipsychotics

risperidone, olanzapine; somewhat better — though still limited — for negative symptoms

Clozapine

atypical with relatively better efficacy against negative symptoms

Long-acting injectable antipsychotic

steady levels over 1-3 months; reduces daily-pill adherence burden and relapse

Patient Teaching

Antipsychotic adherence prevents relapse

stopping meds drives psychotic decompensation and rehospitalization

Long-acting injectable as adherence option

can be first-line, not last resort; needs site monitoring + initial oral overlap

Negative symptoms are illness, not depression or laziness

poor hygiene and withdrawal are neurobiological avolition, not willful noncompliance

Recognize early decompensation signs

return of voices or disorganized speech warrants prompt follow-up

Include family in education and support

Report Nowescalate immediately

Command hallucinations to harm self

highest safety priority; document content and intervene immediately

Command hallucinations to harm others

do not rely on the client's stated ability to resist

Suicidal or homicidal ideation

psychotic decompensation raises risk; may require involuntary hold

Severe agitation or escalating distress

frightened, pacing, breathing rapidly during active hallucinations

Clinical Pearl

Positive = PLUS (something extra added to reality); Negative = the 5 A's that subtract from the person — Affect flat, Alogia, Avolition, Anhedonia, Asociality. Positives respond to meds; negatives drive the disability.