Thorough Is Not Slow: What Informed Consent Actually Requires — Anatomy of Good Care (2/7)

The false trade-off

There is a quiet assumption built into how we talk about consent: that care is a dial running from fast and loose at one end to slow and safe at the other, and that every clinic sits somewhere along it. Move toward speed and you give something up in rigour. Move toward rigour and you accept delay as the price.

It is a tidy model, and it is false. The two worst versions of care both come from believing it. One reads “patient autonomy” as permission to skip the substance — minimal assessment, minimal disclosure, a quick signature — and mistakes haste for respect. The other piles on delay and gatekeeping and mistakes the waiting itself for diligence. Neither has actually located where safety lives. Safety was never a function of tempo. It is a function of what the process contains.

Once you see that, the trade-off dissolves. A thorough process is not thorough because it is slow. A fast process is not unsafe because it is fast. The questions that decide whether consent is real have nothing to do with the clock.

What informed consent actually requires

Strip away the connotations the phrase has accumulated and look at what the standard actually demands, because it is more exacting than either caricature allows.

In UK law, the governing authority is Montgomery v Lanarkshire Health Board [2015] UKSC 11. It departed from an older, doctor-centred test for risk disclosure and put a patient-centred one in its place: a clinician must take reasonable care to ensure the patient is aware of any material risks in a proposed treatment, and of any reasonable alternative or variant treatments [1] — including, as the GMC frames it, the option of taking no action [2]. Crucially, material is defined from the patient’s vantage point, not the clinician’s: a risk is material if a reasonable person in the patient’s position would attach significance to it, or if the clinician is or should be aware that this particular patient would [1]. Materiality cannot be reduced to a percentage; a rare risk can still be one this person needs to weigh. (A later judgment, McCulloch v Forth Valley Health Board [2023] UKSC 26, refined one edge of this: the materiality of a risk is still judged from the patient’s position, but whether a given treatment counts as a “reasonable alternative” that must be put on the table is judged by responsible professional practice.) And the duty is discharged through dialogue, not paperwork — the General Medical Council’s own account of the judgment is explicit that consent is “much more than asking for a signature on a form” and that doing it properly takes time and skill [1].

Layered on top is the GMC’s Decision making and consent guidance, which frames consent as a partnership: find out what matters to the patient, share clear, accurate, evidence-based information about benefits, harms and reasonable options including taking no action, and record the discussion [2].

And underneath all of it sits capacity. Under the Mental Capacity Act 2005, every adult is presumed to have capacity unless the contrary is established; the burden falls on the clinician to demonstrate incapacity, not on the patient to prove competence [3]. Capacity is decision-specific and time-specific, assessed at the moment the decision is made: whether the person can understand the relevant information, retain it, use and weigh it, and communicate a choice — and, critically, a finding of incapacity requires that any such inability arise from an impairment of, or a disturbance in the functioning of, the mind or brain, not from the difficulty of the decision itself [3]. And a person does not lose capacity merely by making a decision others think unwise; disagreement with the choice is not evidence of inability to make it [3].

Read together, that is the real bar: capacity presumed and supported rather than waved through or lightly set aside, risks disclosed in terms that matter to this person, understanding tested rather than presumed, the patient’s own values doing the deciding, and the whole exchange a genuine conversation that is documented. It is demanding work. It is also, notably, more than a casual transaction asks of anyone — which is the first thing the lazy version gets wrong.

What it is not

It follows that several familiar things are not informed consent at all, however much paperwork accompanies them.

A signature collected without that dialogue is not consent; it is a record of a transaction. A form that lists risks the patient never understood is not disclosure; it is a liability shield. And consent is never a way to transfer responsibility onto the patient — “they agreed to it” is not a defence if they were never genuinely brought to understanding. Autonomy is the point of the process, not an excuse to thin it out.

Equally, a process that establishes nothing — that does not check capacity where there is reason to, does not test understanding, does not surface what this person actually needs to weigh — is not “efficient consent.” It is an absence wearing the costume of one. The problem with it is not that it is quick. The problem is that it is empty.

What actually takes the time

Here is the part the trade-off model gets exactly backwards. When you list what a proper consent process genuinely requires time for, none of it is waiting. It is the conversation that establishes understanding. It is the assessment that establishes capacity and clinical suitability. It is the baseline workup and the monitoring plan. These take as long as they take because they have substance — and that substance is the safeguard.

What does not require time, and never protected anyone, is delay imposed for its own sake: the queue that exists because the system is organised around its own convenience rather than the patient in front of it. Running someone’s bloods, their medical review and their psychological assessment thoughtfully and in good order is a valid assessment whether it is spread across months or completed in a well-run day. Compressing the timeline is not the same as compressing the content. A system that has simply organised itself well — so that the substantive work happens without the patient being left in a corridor — has given up nothing that mattered.

And for a patient in real distress, this stops being an abstraction. Delay that serves no clinical purpose is not a neutral holding pattern; it is suffering administered by a calendar. The thing that must be unhurried is the understanding — that can never be rushed, because rushing it would hollow out the consent. The things that can and often should be quick are the assessment and the experience of being heard and moved through a system rather than stranded in one. Those two are not in tension. Hold them apart and the apparent conflict between care and speed simply disappears.

The measure

Both failures — the empty quick one and the punitive slow one — share a single root error: they mistake tempo for safety. One removes the substance and calls the result freedom. The other adds delay and calls the result care. Each has confused how long it took with whether it was done.

The measure of consent is neither. It is not how long someone was made to wait, and not how fast something was placed in their hands. It is whether they walked out of the room genuinely understanding what they chose — and chose it themselves. A process that delivers that has met the standard, at whatever speed it ran. A process that doesn’t, hasn’t — however long it kept them waiting to fail them.

Sources

1. Montgomery v Lanarkshire Health Board [2015] UKSC 11 (UK Supreme Court, 11 March 2015). — Departed from Sidaway and the Bolam test for risk disclosure; established the patient-centred “reasonable patient” standard for disclosure of material risks and reasonable alternative or variant treatments (including no treatment); materiality judged from the patient’s position and not reducible to percentages; a signature on a consent form does not by itself discharge the duty (para 89). Supporting: General Medical Council, Making decisions together: the implications of the Montgomery judgment (ethical learning material, Mary Agnew, 2015) — consent is “much more than asking for a signature on a form” and “takes time and skill to do properly.” Subsequent authority: McCulloch v Forth Valley Health Board [2023] UKSC 26 (12 July 2023) — the materiality of a risk remains patient-centred, but whether a treatment is a “reasonable alternative” that must be disclosed is judged by responsible professional practice (the Bolam/Hunter test). (UK law; adults with capacity.)
2. General Medical Council, Decision making and consent (in effect 9 November 2020) — the seven principles of decision making and consent: find out what matters to the patient; share clear, accurate, up-to-date, evidence-based information about benefits, harms and reasonable alternatives including the option to take no action; tailor the conversation to the individual; presume capacity in adult patients; record how consent was given and the relevant discussion. (UK professional standard; adults.)
3. Mental Capacity Act 2005 (England and Wales). — Five core principles (s.1), including the presumption of capacity for every adult unless the contrary is established, the duty to support a person to make their own decision, and that an unwise decision does not itself indicate incapacity. Capacity is decision-specific and time-specific, and a finding of incapacity requires an impairment of, or a disturbance in the functioning of, the mind or brain (s.2), with the functional test — understand, retain, use/weigh, and communicate the relevant information — set out at s.3. The burden of establishing incapacity, on the balance of probabilities, rests with the person asserting it. Supporting: GMC ethical guidance on mental capacity — capacity must not be presumed absent on the basis of age, appearance, behaviour, condition, or an apparently unwise choice; assessing capacity is a core clinical skill. (UK law; adults aged 16+.)