Acute Pain is the nursing diagnosis for an unpleasant sensory and emotional experience arising from actual or potential tissue damage, with a sudden or slow onset, any intensity from mild to severe, and an anticipated or predictable end lasting less than three months. The nursing priority is to accept the client’s self-report, treat the pain before it escalates, and reassess after the drug’s peak effect rather than at the next scheduled check.
At a glance
- Duration
- Less than 3 months, with an expected end point. Longer than that, use Chronic Pain.
- Best indicator
- The client’s own report. It outranks vital signs, behaviour, and your impression.
- Common causes
- Surgery, trauma, procedures, inflammation, ischemia, obstruction, childbirth.
- Reassess at
- About 15–30 minutes after an IV dose, about 60 minutes after an oral dose.
Pathophysiology in one pass
Tissue injury releases prostaglandins, bradykinin, substance P, and histamine, which sensitise peripheral nociceptors. The signal travels along fast A-delta fibres, producing sharp, well-localised pain, and along slower C fibres, producing the dull, aching, poorly localised pain that follows. Both synapse in the dorsal horn of the spinal cord, ascend the spinothalamic tract, and are interpreted in the cortex.
Two consequences drive the whole care plan. First, sympathetic activation raises heart rate, blood pressure, and respiratory rate — but only early. Vital signs normalise as the body adapts, which is why a calm client with normal vitals can still be in severe pain. Second, unrelieved acute pain causes splinting, shallow breathing, immobility, and poor sleep, which is how a pain problem turns into atelectasis, pneumonia, venous thromboembolism, and delayed healing.
Nursing assessment
Subjective data
- Self-reported intensity on a scale the client can actually use
- Location, quality, onset, duration, and what makes it better or worse
- Radiation, and any associated nausea, dizziness, or numbness
- What the client has already tried, and what has worked before
- The client’s comfort-function goal — the number at which they can cough, turn, and walk
Objective data
- Guarding, splinting, grimacing, rigid posture, restlessness, reluctance to move
- Shallow respirations, weak cough, refusal to use the incentive spirometer
- Diaphoresis, pallor, tachycardia, hypertension — early only, and often absent
- Surgical site, drains, dressings, distension, or a device that could be the source
- Response to the last dose, including sedation level and respiratory rate and depth
Choosing a pain scale
| Client | Tool | What it uses |
|---|---|---|
| Alert adult or older child | Numeric rating scale, 0–10 | Self-report |
| Young child, or limited literacy or language | Wong-Baker FACES | Self-report by picture |
| Infant or preverbal child | FLACC | Face, legs, activity, cry, consolability |
| Intubated or sedated adult | CPOT or Behavioral Pain Scale | Observed behaviour |
| Advanced dementia | PAINAD | Observed behaviour |
Nursing diagnoses used with acute pain
- Acute Pain — the problem itself
- Impaired Physical Mobility — from guarding and fear of movement
- Risk for Ineffective Breathing Pattern — from splinting and opioid sedation
- Risk for Constipation — from opioid therapy and reduced mobility
- Anxiety — pain and anxiety amplify each other
- Disturbed Sleep Pattern — from night-time breakthrough pain
Worked care plans
Four plans in the same ADPIE shape. The scenario is a 58-year-old client on the first post-operative day after an open cholecystectomy.
1. Acute Pain
Problem-focusedSubjective: Reports sharp incisional pain of 8/10 at rest and 10/10 with movement. States the pain stops her taking a deep breath.
Objective: Guarding the right upper abdomen, grimacing with position change, respirations shallow at 22, refusing the incentive spirometer, heart rate 104.
Acute Pain related to surgical tissue trauma and the inflammatory response, as evidenced by self-report of 8/10 sharp incisional pain, guarding, grimacing, and shallow respirations.
- Client reports pain at or below her stated comfort-function goal within 60 minutes of analgesia
- Client demonstrates splinting the incision with a pillow while coughing by the end of the shift
- Client uses the incentive spirometer ten times each hour while awake
- Assess pain with the numeric scale before and after every intervention
- Give the scheduled non-opioid and the ordered opioid together, per the multimodal plan in the orders
- Dose about 30 minutes before ambulation, dressing change, or physiotherapy
- Teach and supervise splinting with a folded blanket or pillow during coughing
- Position semi-Fowler’s with knees supported to reduce abdominal wall tension
- Reassess about 15–30 minutes after the IV dose and document the response
At 45 minutes the client reports 3/10, splints the incision without prompting, and completes ten spirometer breaths. Respirations 16 and unlaboured. Goal met.
2. Impaired Physical Mobility
Problem-focusedSubjective: States she is afraid to get up because moving “pulls” at the incision.
Objective: Has not been out of bed since surgery. Moves slowly and rigidly, requires two-person assist to the edge of the bed.
Impaired Physical Mobility related to pain and guarding of the surgical site, as evidenced by refusal to ambulate, rigid movement, and need for two-person assistance to transfer.
- Client ambulates in the hallway with one-person assistance twice during the shift
- Client performs ankle pumps and leg exercises each hour while awake
- Client remains free of falls
- Time analgesia so the peak effect coincides with planned activity
- Dangle at the bedside first and check for dizziness before standing
- Support the incision during transfers and teach a log-roll to the side before sitting
- Set a visible distance goal for each walk and increase it gradually
- Keep the call light, footwear, and clear floor space within reach
Client walked to the nurses’ station and back twice with one assist, no dizziness, no fall. Goal met.
3. Risk for Ineffective Breathing Pattern
Risk diagnosis- Upper abdominal incision, which splints the diaphragm
- Guarding and voluntary shallow breathing to avoid pain
- Opioid therapy and post-anaesthetic sedation
- Immobility and supine positioning
No “as evidenced by” — the problem has not occurred yet.
Risk for Ineffective Breathing Pattern related to incisional pain with splinting, opioid-induced sedation, and immobility.
- Client maintains oxygen saturation within the range specified in the orders
- Client’s lungs remain clear to auscultation in all fields
- Client produces an effective cough and uses the incentive spirometer as taught
- Assess sedation level with respiratory rate and depth before and after each opioid dose
- Auscultate breath sounds every shift and with any change in status
- Treat the pain so the client can breathe deeply, rather than withholding the drug to protect breathing
- Reinforce spirometer use, splinted coughing, and turning every two hours
- Keep the head of the bed elevated unless contraindicated
- Know where the reversal agent and airway equipment are, and follow facility protocol for excessive sedation
Lungs clear bilaterally, saturation within ordered range on room air, client easily roused and coughing effectively with splinting. Risk not realised; continue plan.
4. Risk for Constipation
Risk diagnosis- Opioid analgesia, which slows gastrointestinal motility
- Reduced mobility
- Reduced oral fluid and fibre intake after surgery
- Anaesthesia and abdominal surgical manipulation
Risk for Constipation related to opioid therapy, decreased mobility, and reduced oral intake.
- Client passes a soft, formed stool before discharge
- Client reports return of flatus and has active bowel sounds
- Client names two ways to prevent constipation while taking opioids at home
- Start the ordered bowel regimen when opioids start, not after two days without a stool
- Assess bowel sounds, abdominal distension, flatus, and last bowel movement each shift
- Encourage fluids and fibre once diet is advanced and tolerated
- Ambulate as ordered — mobility is the cheapest motility intervention available
- Give the client privacy and unhurried time when they feel the urge
Bowel sounds active in four quadrants, flatus passed on day two, soft stool before discharge. Client states she will take the stool softener with the opioid and keep walking. Risk not realised; goal met.
Free download
NCLEX Readiness Diagnostic
Fifty questions with a written rationale on every option, scored by section so you can see which content area is weakest. Sent as a PDF.
Interventions and rationales
Client teaching
- Ask for medication when pain begins, not when it becomes unbearable — it takes less drug to prevent severe pain than to reverse it
- Use the same scale each time, and name the number at which you can walk, cough, and sleep
- Splint the incision with a pillow before coughing, sneezing, or standing
- Start the stool softener when the opioid starts and keep taking it as long as you take the opioid
- Do not add over-the-counter pain or cold remedies without checking — many already contain acetaminophen and stack without you knowing
- Do not drink alcohol or drive while taking opioids
- Store opioids where no one else can reach them and return unused tablets to a pharmacy take-back
- Call the provider for pain that suddenly worsens or changes character, fever, redness or drainage at the site, or pain no longer relieved by the prescribed dose
NurseStudyPrep.com
You’ve read the care plan. Now answer one.
A real item from the Basic Care and Comfort section. Every option gets a written rationale — including the three that are wrong.
A client is four hours post-operative and received IV morphine 20 minutes ago. The client is difficult to arouse but responds to a loud voice, and respirations are 9 and shallow. Which action should the nurse take first?
Why B. Excessive sedation is the earliest sign of opioid-induced respiratory depression, and the first nursing action is to stimulate the client and support ventilation while withholding further opioid and escalating per protocol. Documenting, waiting, or dosing again all let the sedation deepen. Prep also explains why each wrong option looks defensible.
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Frequently asked questions
What is the difference between acute and chronic pain?
Acute pain has an identifiable cause, a sudden or slow onset, and an anticipated end within three months. Chronic pain persists beyond the expected healing time, usually longer than three months, and often has no ongoing tissue damage to explain it. The diagnosis you choose changes the goals: acute pain aims at relief, chronic pain aims at function.
How do you write an Acute Pain nursing diagnosis statement?
Use the three-part format: diagnosis, related to the cause, as evidenced by the client’s data. For example, “Acute Pain related to surgical tissue trauma as evidenced by self-report of 8/10 incisional pain, guarding, and grimacing.” Avoid naming a medical diagnosis as the cause — write “surgical tissue trauma” rather than “cholecystectomy,” which instructors commonly mark down.
Can you assess pain if the client cannot speak?
Yes. Use a validated behavioural tool — FLACC for infants and preverbal children, CPOT or the Behavioral Pain Scale for intubated adults, PAINAD in advanced dementia. Follow the hierarchy of pain assessment: attempt self-report, assume pain when a known painful condition or procedure is present, observe behaviour, then ask a caregiver who knows the client’s baseline.
Should vital signs be used to confirm pain?
No. Sympathetic responses appear early and fade as the body adapts, so normal vital signs are common in clients with real, severe pain. Vital signs are useful for monitoring the response to treatment and for detecting complications — they are not a way to verify or dispute what the client reports.
What is a comfort-function goal and why use it instead of “pain-free”?
It is the pain level at which the client can do what recovery requires — cough, turn, walk, sleep. It is set with the client, not assigned. It is more useful than a zero target because zero is often unachievable after surgery, and chasing it invites oversedation while leaving the actual goal of the admission unmeasured.
References
- Herdman, T. H., Kamitsuru, S., & Lopes, C. T. (Eds.). NANDA International Nursing Diagnoses: Definitions and Classification, 2024–2026. Thieme.
- Chou, R., et al. Management of Postoperative Pain: A Clinical Practice Guideline. The Journal of Pain, 17(2).
- American Society for Pain Management Nursing. Position statements on pain assessment in the nonverbal patient and on authorised agent-controlled analgesia.
- The Joint Commission. Pain assessment and management standards, R3 Report.
- Centers for Disease Control and Prevention. Clinical Practice Guideline for Prescribing Opioids for Pain, 2022.
Doses, hold parameters, sedation scales, and bowel protocols vary by facility and by client. Follow the provider’s written orders and your own institution’s standards. This page supports study and does not replace course instruction or clinical judgement.
