Nursing care
Types of Restraints, explained for the bedside and the exam
Written and reviewed by Dana Whitfield, RN, MSN · 4 min read · Updated September 2026
Short answer
A restraint is any manual method, physical device, or equipment that restricts a patient's movement and cannot be removed easily by the patient. Common types include soft wrist restraints, mitts, vest restraints and belt restraints. Raising all four side rails on a bed also meets the legal definition of a restraint, which surprises many students and some new nurses.
The idea in one paragraph
Restraints are classified by what they physically do, not by what they are called on a supply cart. Soft wrist restraints limit hand and arm movement to protect lines and tubes. Mitts prevent grasping and pulling without immobilising the whole arm. Vest restraints limit trunk movement to prevent a patient from rising or falling from a bed or chair. Belt restraints secure the torso to a bed or wheelchair for the same purpose.
The definition that catches people out is the fifth item: raising all four side rails on a patient who cannot lower them independently is legally a restraint, because it restricts the patient's freedom of movement just as effectively as a strap does. Two rails up as a fall-prevention measure with rails the patient can lower is generally not classed the same way; four up, with no way for the patient to get out, is.
Why it matters clinically
Restraint use carries real risk: skin breakdown, nerve compression, deconditioning, aspiration in vest or belt restraints if positioning is poor, and psychological harm including increased agitation. Regulatory bodies including CMS require restraints to be the least restrictive option, used only after alternatives have failed, and tied to a specific, documented clinical justification.
Because a restraint restricts a legal right to free movement, its use is time-limited and requires a provider order that specifies the type, the reason and the duration, renewed on a schedule set by facility policy and applicable state law. Nurses are accountable for reassessing the need continuously, not just at the start of the shift.
How to apply it at the bedside
Try and document least-restrictive alternatives first: reorientation, a sitter, moving the patient closer to the nurses' station, camouflaging lines, or a low bed with floor mats. If a restraint is necessary, obtain the order, select the type that addresses the specific risk rather than the most restrictive option available, and apply it with two fingers of slack using a quick-release knot tied to the bed frame, never the side rail.
Check circulation, movement, sensation and skin integrity at intervals set by policy, typically at least every two hours, and release the limb briefly at each check for range of motion. Reassess the ongoing need at the same interval and remove the restraint as soon as the criteria for its use are no longer met.
Where students get it wrong
The most common error is treating four raised side rails as ordinary safety equipment that needs no order and no reassessment, when a patient unable to lower them independently is functionally restrained. Students also confuse restraints applied for behavioural reasons with those applied for medical device protection; the two categories have different regulatory requirements and different documentation standards.
Another frequent mistake is tying a restraint strap to the movable side rail rather than the fixed bed frame, which creates an entrapment and injury risk if the rail is lowered with the strap still attached. Students also underestimate how quickly a restraint order expires and forget that a physician or qualified provider must reassess and re-order, not simply continue the existing one indefinitely.
Worked examples
A confused postoperative patient keeps pulling at a central line. The least restrictive effective option is usually mitts, which prevent grasping while preserving arm mobility, rather than a wrist restraint that fully immobilises the limb.
A patient at high fall risk is nursed in a bed with all four side rails raised and no way to lower them independently. Despite no strap being visible anywhere, this is a restraint under the legal definition and requires the same order, monitoring and reassessment as a vest or belt.
A combative patient in the emergency department requires a vest restraint to prevent injury to self or staff during an acute behavioural emergency. This falls under behavioural-emergency restraint criteria, which typically require more frequent monitoring than a medical-device-protection restraint.
How the exam tests it
NCLEX questions frequently present a scenario where a nurse raises all four side rails for a confused or sedated patient and then asks what the nurse should do next; the expected answer treats this as restraint use requiring an order and periodic reassessment, not as a neutral safety step.
Other items test the priority sequence: try alternatives, obtain an order, apply the least restrictive device correctly, and monitor circulation and skin at set intervals. Distractor answers often offer a more restrictive device than the scenario calls for, or skip straight to application without documenting the failed alternatives first.
The next step on this is the same as on everything else here: answer questions and read the rationales. Our safe and effective care practice questions are the closest set to what this page covers.
One question from the safe and effective care set
A nurse on a medical unit receives report on four clients. Which client should the nurse assess first?
Rationale
Prioritization items are airway, breathing, circulation, in that order — the ranking survives every rewording. Audible gurgling around a fresh tracheostomy is a partially obstructed airway and it is the only option that can kill the client in the next few minutes. Fever, post-op pain, and a glucose of 232 are all real problems that need the nurse, just not first.
Answer: C
Common questions
Are four raised side rails considered a restraint?
Yes, when the patient cannot lower them independently, four raised side rails meet the legal and regulatory definition of a restraint. This requires the same order, justification and monitoring as a strap or vest restraint.
How often must a restrained patient be assessed?
Facility policy sets the exact interval, but checking circulation, movement, sensation and skin at least every two hours is a common standard. The restraint should also be released briefly at each check for range of motion.
Where should a restraint strap be tied?
The strap should be secured to the fixed bed frame using a quick-release knot, never to a movable side rail. Tying to a rail creates an entrapment risk if the rail is later lowered.
What must a nurse try before applying a restraint?
Least-restrictive alternatives such as reorientation, a sitter, closer observation, or a low bed with floor mats should be attempted and documented first. Restraints are used only after these fail and require a specific provider order.
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