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OMSB Mental Health Nursing Practice Questions
Mental health questions test therapeutic communication, safety and medication side effects across common psychiatric conditions. Below are 5 free sample questions for the OMSB nursing exam, each with the answer and a rationale.
What this topic covers
- Therapeutic vs non-therapeutic communication
- Suicide risk and safety
- Depression and bipolar disorder (lithium)
- Schizophrenia and antipsychotic side effects
- Alcohol withdrawal and delirium tremens
- De-escalation and restraint principles
The full bank has 70 mental health nursing questions, part of 1,500 questions across 16 nursing topics.
Free OMSB mental health nursing questions
1. A nurse is unsure whether to ask a depressed patient directly about suicide. Which statement is correct?
- A. Suicide should be discussed only if the patient raises it
- B. Asking about suicide may put the idea into the patient's head
- C. Asking directly about suicidal thoughts does not increase the risk
- D. Only a psychiatrist should ask about suicidal thoughts
Show answer and rationale
Evidence shows that asking directly and clearly about suicidal thoughts does not increase risk and often brings relief; it is essential for risk assessment. All nurses should be able to ask.
Reference: WHO – preventing suicide; Varcarolis Psychiatric Mental Health Nursing
2. A newly admitted patient with obsessive-compulsive disorder washes her hands for long periods and is often late for meals. Which initial approach is best?
- A. Stop the patient from washing her hands
- B. Explain that the ritual is illogical and unnecessary
- C. Lock the bathroom between set times
- D. Allow time for the ritual within a structured schedule, then gradually limit it
Show answer and rationale
Compulsions reduce severe anxiety, so preventing them suddenly causes distress. Allowing time for the ritual within a routine, then gradually setting limits, is the recommended approach.
Reference: Townsend Psychiatric Mental Health Nursing – obsessive-compulsive disorder
3. A patient taking a monoamine oxidase inhibitor (MAOI) is taught about hypertensive crisis. Which symptom should the patient report immediately?
- A. Mild dry mouth
- B. Severe headache at the back of the head with a stiff neck
- C. Drowsiness after the evening dose
- D. Slight weight gain
Show answer and rationale
A severe occipital headache, stiff neck, palpitations and sweating are warning signs of hypertensive crisis, which can occur after eating tyramine-rich foods while taking an MAOI.
Reference: Standard nursing pharmacology – MAOIs
4. A patient is admitted after a suicide attempt and continues to express intent. Which nursing intervention is most appropriate?
- A. Check on the patient every hour and allow personal belongings
- B. Place the patient on continuous one-to-one observation and remove harmful items
- C. Allow the patient to leave the unit accompanied by a visitor
- D. Assign the patient to a single room at the end of the corridor
Show answer and rationale
A patient with ongoing intent needs close observation within arm's reach and a safe environment free of ligature points and sharp objects. Hourly checks and isolated rooms are unsafe for high risk.
Reference: Varcarolis Psychiatric Mental Health Nursing – suicide
5. A patient taking an antipsychotic paces constantly, cannot sit still and says, "I feel restless inside." How should the nurse interpret this?
- A. Worsening psychosis that needs a higher dose
- B. Early tardive dyskinesia
- C. Neuroleptic malignant syndrome
- D. Akathisia, an extrapyramidal side effect to report
Show answer and rationale
Akathisia is a subjective inner restlessness with an inability to keep still, caused by antipsychotics. It is often mistaken for agitation or anxiety; increasing the dose could make it worse.
Reference: Standard nursing pharmacology – antipsychotic extrapyramidal effects
Study tip
In communication questions, choose the answer that acknowledges feelings and invites the patient to talk, not the one that reassures or gives advice.
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