Nursing care
Spinal Anesthesia Care, explained for the bedside and the exam
Written and reviewed by Dana Whitfield, RN, MSN · 5 min read · Updated September 2026
Short answer
Spinal anaesthesia care means keeping the patient flat for the prescribed period, recognising that a headache worse when sitting up points to dural puncture, and confirming return of leg movement and sensation before allowing the patient to mobilise. Skipping any of these three steps risks a missed complication or a fall.
Defining it precisely
Spinal anaesthesia is a single injection of local anaesthetic into the subarachnoid space, producing a dense motor and sensory block below the injection level that wears off over a predictable window, usually a few hours depending on the agent used. Nursing care after the procedure centres on three things: positioning, headache surveillance, and motor return.
The patient stays flat for the period prescribed by the anaesthesia team, which varies by protocol and agent but is a specific ordered duration, not a nurse's judgment call. During this time you are also watching for a headache that worsens on sitting or standing and improves lying flat, which is the hallmark of a post-dural-puncture headache. Before any mobilisation attempt, you check both legs for return of voluntary movement and sensation to touch, comparing side to side.
The exceptions that matter
Not every post-spinal headache is a dural puncture headache, and not every headache after spinal anaesthesia requires the same response. A headache that is present regardless of position, or that does not ease when the patient lies flat, is atypical and should prompt broader assessment rather than automatic attribution to the puncture site.
The flat-positioning order itself can vary by institution and by the needle gauge used during the procedure, with some protocols allowing earlier mobilisation with smaller-gauge needles. Always follow the specific order written for that patient rather than a remembered general rule, and if the order and your assessment findings conflict, for example the patient reports leg weakness after the expected block duration has passed, escalate before proceeding with mobilisation regardless of what the clock says.
Using it to prioritise
When you are managing several post-spinal patients, prioritise by where each one sits in the recovery sequence. A patient still within the flat-positioning window who attempts to sit up unassisted is a higher immediate priority than a patient who is stable and simply waiting out the clock, because of both headache risk and fall risk from a block that has not fully resolved.
A patient reporting a new headache that worsens on elevation takes priority over routine checks, since this needs to be reported and may require specific treatment such as an epidural blood patch if conservative measures fail. A patient with asymmetric leg movement on your pre-mobilisation check, meaning one leg moves normally and the other does not, is a stop point: do not proceed to ambulation, and reassess or escalate first.
Traps in exam wording
Exam questions often test whether you will mobilise a patient purely because time has passed since the spinal was administered, without checking motor return first. The correct action is always to assess leg strength and sensation directly before the first attempt to stand, regardless of how much time the question states has elapsed.
Another common trap presents a headache and asks you to identify the intervention, offering distractors like antiemetics or opioids as the primary answer. The position-dependent nature of the headache, worse sitting, better flat, is the detail that should drive your answer toward continued flat positioning, hydration, and caffeine or blood patch per protocol, rather than treating it as a generic headache. Watch also for questions that describe a headache present in all positions; that detail should steer you away from a dural puncture headache answer.
Examples from practice
A patient two hours post-spinal for a caesarean section reports a throbbing headache that is severe when the head of the bed is raised and largely resolves when she lies completely flat. This pattern, position-dependent and relieved by flat positioning, is consistent with a post-dural-puncture headache, and the nurse's first actions are to keep her flat, ensure hydration, and notify the anaesthesia team.
A different patient, four hours post-spinal for a hip procedure, is due to attempt standing per the mobility protocol. Before assisting her up, the nurse checks both legs: she can lift and hold each leg against resistance and reports normal sensation to light touch bilaterally. Motor and sensory function have returned symmetrically, so the nurse proceeds with a supervised, gradual mobilisation, watching for orthostatic symptoms as she moves from lying to sitting to standing.
Summary
Three checkpoints govern spinal anaesthesia care: stay flat for the prescribed duration, recognise a position-dependent headache as a possible dural puncture, and confirm bilateral return of leg movement and sensation before mobilising. None of these substitutes for the others.
When protocols vary between institutions or an order conflicts with your assessment, follow the specific written order and escalate discrepancies rather than defaulting to what you remember from a different unit.
The next step on this is the same as on everything else here: answer questions and read the rationales. Our med-surg practice questions are the closest set to what this page covers.
One question from the med-surg set
A client with chronic obstructive pulmonary disease has an oxygen saturation of 88% on 2 L/min via nasal cannula and is alert with no distress. What should the nurse do first?
Rationale
In COPD a saturation of 88–92% is the therapeutic target, not an emergency, and this client is alert with no distress. The first action is the independent nursing intervention that is least invasive and most likely to help: sit them up and reassess. Turning the oxygen up to 6 L/min risks blunting the hypoxic drive, and calling rapid response or drawing an ABG escalates ahead of an assessment you have not finished.
Answer: B
Common questions
How long does a patient need to stay flat after spinal anaesthesia?
The duration is set by the prescribing anaesthesia team's order and varies by agent and institutional protocol, so there is no single universal number. Follow the specific order for that patient rather than a remembered general rule.
How do you tell a spinal headache from a regular headache?
A post-dural-puncture headache is characteristically position-dependent: it worsens significantly when the patient sits or stands and eases when they lie flat. A headache that persists regardless of position is atypical and warrants broader assessment.
What do you check before letting a post-spinal patient stand?
Check both legs for return of voluntary movement against resistance and for normal sensation to light touch, comparing side to side. Asymmetric or absent motor return means you hold off on mobilisation and reassess or escalate.
Can a patient with a spinal headache still be mobilised?
Generally the priority is keeping them flat to relieve the headache, since sitting or standing will worsen the symptom. Mobilisation decisions should be made jointly with the treating team once the headache is being actively managed.
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