Chapter 9 Approaches to risk assessment 2
Risk assessment is best described in terms of human endeavour, not in the language of scientific measurement.1
Screening for risk
Screening for risk is a routine part of all assessments. Screening for suicide risk will be used as the example to describe the process. The assessment of suicidal risk is one of the most common and basic procedures in psychiatry.2 It is probably the purest example of a risk assessment as the process requires close interaction with the patient, is incremental in that the next question is based on the response to the previous question, and interventions will be based on both treating the underlying illness and preventing the risk behaviour from occurring.
If the verbal and/or non-verbal response to these opening questions is positive, the clinician will then continue to ask more probing questions until the extent of the preoccupation with suicide is apparent. From there, in conjunction with the rest of the assessment, management decisions will be made. For suicide,
because of the acuity which may be present, it is not uncommon for a full assessment to be conducted during the first meeting to determine the level of risk. This is less likely to be the case for violence where the focus is more often on preventing future episodes.
The negatives if the risk is minimal will make the process quick, the discovery of positives and consideration of interventions makes it worthwhile.3
There are screening tools available (one is included in Chapter 15, risk of violence) but a useful rule of thumb is to consider a more detailed assessment if:
• there are substantive risk issues
• the patient is likely to require treatment after hours
• the patient is likely to make contact with the service in between appointments
• the patient is admitted for treatment to either a respite facility or hospital
• there is a past history of violence, self-harm or suicide attempts.
BOX 9.2 CLINICAL TIP
OBSESSIVE-COMPULSIVE DISORDER (OCD)4
• Obsessional ruminations are often misinterpreted as indicating risk. There are no recorded cases of a person with OCD carrying out their obsession. By definition, such intrusions are unacceptable and ego-dystonic.
• Risk in OCD is usually related to the consequences of acting on compulsions and urges in order to avoid the anxiety-provoking situations; for example, harm from washing hands too frequently, harm from compulsive hoarding.
• Risk to others may occur when well-meaning attempts are made to prevent compulsive behaviours being carried out.
• Secondary co-morbid illnesses such as depression, which is driven by the distress of the OCD, may create risk of suicide and should be assessed.
Assessment and documentation exercise
The first exercise in this section starts the process of assessing and documenting risk. Often, the first presentation is a phone call or an assessment in the Emergency Department (ED). Information may be limited but a start needs to be made. The initial identification of the risk may also create anxiety on the part of the clinician. The process of simply documenting what is known creates a degree of objectivity which will immediately reduce anxiety. The purpose of the following exercise is to simply practise documenting identified risk and consider to whom, when, where and what means might be used. Practising the exercises will give you an opportunity to get used to the routine questions which are central to any risk assessment. With practice, there will be increasing familiarity which is a risk management skill in its own right. Familiarity with the process can reduce risk by a factor of 17.5
For each of the examples below answer the following questions.
Exercise 1 — Monique
Monique is a 28-year-old woman with schizophrenia. Her boyfriend has recently left her and staff in the supported accommodation home in which she lives report that she is tearful, distraught and withdrawn. They wonder if she is going to kill herself. The staff phone you and your task is to complete the risk documentation on the triage form. Refer to the template in Figure 9.1. The completed form appears in Appendix 3.
Comment on the completed form
For Monique, she will need to be seen relatively urgently for a more complete assessment. The staff in the supported accommodation are anxious and part of the task of the assessment will be to manage this anxiety. Hopefully, she will already have a risk management plan which will make the process easier. This is how the risk may be documented in a triage form written by a duty worker receiving the call from the supported accommodation home. See Appendix 1 for an example of a triage form, including a place for documenting risk.
Exercise 2 — Phoebe
Use the risk assessment template in Figure 9.1. The completed form appears in Appendix 3.
Exercise 3 — Colin
Use the risk assessment template in Figure 9.1. The completed form appears in Appendix 3.
Comment on the completed form
For Colin, the risk assessment starts immediately with your interpretation of his intent stare. His opening statement, ‘There’s nothing wrong with me’, is likely to be made aggressively. Is this statement made because he is frightened or angry or both? His stare and the tone of his voice are important factors which will help in the identification of the potential risk and in the determination of its severity. Commenting on the lack of knowledge of whether a weapon exists or not is important for the continuing assessment. The answer has not commented on the smell of cannabis. Is he currently intoxicated? Is cannabis use a risk factor for violence — possibly not unless accompanied by psychosis. Does he have a psychotic illness related to substance abuse or is his psychosis possibly schizophrenia? There are a lot of unknowns in this example which will be common in an acute presentation.