Acute Pancreatitis Nursing Guide 2026
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Causes, severity scoring, nursing priorities, fluid resuscitation, pain management, nutrition strategy, and complications of acute pancreatitis.
1. Causes (GET SMASHED Mnemonic)
GET SMASHED:
G — Gallstones (most common, ~40%)
E — Ethanol (alcohol, #2 cause, ~30%)
T — Trauma
S — Steroids
M — Mumps (and other viruses: coxsackievirus, HIV)
A — Autoimmune
S — Scorpion sting (tropical)
H — Hyperlipidemia (triglycerides >1000 mg/dL), Hypercalcemia, Hypothermia
E — ERCP (post-procedural)
D — Drugs (azathioprine, thiazides, furosemide, valproic acid, tetracyclines, estrogen)
2. Clinical Presentation
- Severe, constant epigastric pain — radiates to the back (boring/boring through); worse after fatty meals or alcohol
- Nausea and vomiting (vomiting does NOT relieve pain — unlike peptic ulcer)
- Abdominal tenderness, guarding; decreased bowel sounds (ileus)
- Low-grade fever (inflammation); elevated WBC
- Elevated serum amylase (rises early, normalizes in 2–3 days) and lipase (rises slower, stays elevated longer — more sensitive and specific)
- In severe disease: tachycardia, hypotension, respiratory distress (ARDS)
Cullen's and Grey Turner's Signs
| Sign | Location | Meaning |
|---|
| Cullen's sign | Periumbilical ecchymosis (bruising around navel) | Retroperitoneal hemorrhage tracking to periumbilical area — hemorrhagic pancreatitis (SEVERE) |
| Grey Turner's sign | Flank ecchymosis (bruising on flanks) | Retroperitoneal hemorrhage tracking to flanks — hemorrhagic pancreatitis (SEVERE) |
3. Severity Scoring
Ranson Criteria
| On Admission | At 48 Hours |
|---|
| Age >55 | HCT decrease >10% |
| WBC >16,000/mcL | BUN increase >5 mg/dL |
| Blood glucose >200 mg/dL | Calcium <8 mg/dL |
| LDH >350 IU/L | PaO2 <60 mmHg |
| AST >250 IU/L | Base deficit >4 mEq/L |
| Fluid sequestration >6 L |
Ranson score 0–2: mild (mortality <5%); 3–4: moderate (~15%); 5–6: severe (~40%); >6: critical (~100% mortality). Limitations: requires 48 hours to complete; alcohol vs. gallstone pancreatitis criteria slightly different.
BISAP Score (Bedside Index of Severity in Acute Pancreatitis)
| BISAP Criteria (1 point each) |
|---|
| B — BUN >25 mg/dL |
| I — Impaired mental status (GCS <15) |
| S — SIRS (≥2 of: temp <36 or >38°C; HR >90; RR >20 or PaCO2 <32; WBC <4k or >12k or >10% bands) |
| A — Age >60 years |
| P — Pleural effusion on imaging |
BISAP ≥3 = higher risk of mortality and complications. Can be calculated on admission (unlike Ranson). Simpler than Ranson at the bedside.
4. Nursing Priorities
- Fluid resuscitation — aggressive IV fluid replacement is cornerstone of treatment
- Pain management — effective analgesia (opioids are appropriate; the old teaching of "avoid morphine due to sphincter of Oddi spasm" is outdated)
- NPO assessment — historically strict NPO; current evidence supports early enteral nutrition if tolerated
- Monitoring for complications — hourly UO, vital signs, O2, abdominal assessment
5. Fluid Resuscitation
Goal-directed isotonic fluid replacement:
- Lactated Ringer's preferred over Normal Saline (LR may reduce SIRS response)
- Initial rate: 250–500 mL/hr or bolus 500 mL followed by 125–250 mL/hr
- Goal: UO 0.5–1 mL/kg/hr; BUN and Hct trending down; HR <100 bpm
- Reassess every 6 hours; over-resuscitation causes abdominal compartment syndrome and ARDS
- Third-spacing occurs rapidly in severe pancreatitis — often 6–10+ liters in first 24–48 hr
6. Pain Management
- IV opioids: hydromorphone or morphine — reassess frequently; multimodal analgesia
- Old teaching: "avoid morphine" due to sphincter of Oddi spasm → OUTDATED and not evidence-based; morphine is acceptable
- Position for comfort: fetal position (lying on side, knees to chest) often relieves pain
- Avoid NSAIDs in the acute phase (risk of GI bleeding, renal toxicity)
7. Nutrition
Updated approach — early enteral nutrition:
- Mild pancreatitis: start oral diet when patient is free of nausea/vomiting and tolerated; begin with low-fat, soft foods. Early oral feeding is safe and shortens hospital stay.
- Moderate-severe: early enteral nutrition (nasojejunal tube beyond ligament of Treitz, or nasogastric if jejunal not feasible) within 24–48 hours preferred over TPN
- Rationale: keeps gut barrier intact, reduces bacterial translocation, reduces infection risk
- TPN reserved for patients who cannot tolerate enteral nutrition after 5–7 days
- Minimize pancreatic stimulation: avoid oral fat initially; jejunal feeding bypasses cephalic and gastric phases of digestion
8. Complications of Severe Pancreatitis
| Complication | Description | Nursing/Management |
|---|
| ARDS | Phospholipase A2 release destroys surfactant; inflammation → diffuse alveolar damage | O2 therapy, mechanical ventilation with lung-protective strategy; SpO2 >94% |
| AKI | Third-spacing + hypotension → prerenal AKI; toxin-mediated ATN | Strict UO monitoring; fluid resuscitation; avoid nephrotoxins |
| Hypocalcemia | Fat necrosis sequesters calcium (saponification); low albumin | Check ionized Ca2+; replace IV calcium gluconate if symptomatic (Trousseau, Chvostek, tetany) |
| Hyperglycemia | Islet cell destruction → decreased insulin production | Insulin infusion per protocol; glucose monitoring q1–4h in ICU |
| Pancreatic necrosis | Areas of non-viable pancreatic tissue on CT with contrast; sterile vs. infected | Infected necrosis: IV antibiotics (imipenem); surgical/endoscopic debridement; sterile necrosis: conservative management |
| Pseudocyst | Walled-off fluid collection >4 cm; usually appears 4+ weeks after acute episode | Monitor for infection, rupture, hemorrhage; drainage if symptomatic or infected |
| Hemorrhage | Arterial erosion (splenic artery most common); sudden severe pain + hemodynamic instability | Emergent IR angioembolization or surgery |
| Abdominal Compartment Syndrome | Intraabdominal pressure >20 mmHg + new organ dysfunction; from massive fluid resuscitation | Measure bladder pressure; target <20 mmHg; decompressive laparotomy if refractory |
NCLEX High-Yield: Acute Pancreatitis
- Most common causes: gallstones (#1) and alcohol (#2)
- Lipase: more sensitive and specific than amylase; stays elevated longer
- Pain: epigastric, radiates to back; position of comfort = fetal position
- Cullen's sign: periumbilical bruising; Grey Turner's: flank bruising → hemorrhagic pancreatitis
- Preferred fluid: Lactated Ringer's over NS; goal UO 0.5–1 mL/kg/hr
- Hypocalcemia: fat necrosis (saponification) sequesters calcium → monitor for Trousseau and Chvostek
- Early enteral nutrition preferred over TPN in severe pancreatitis
- Nasojejunal tube bypasses duodenum → minimal pancreatic stimulation
- Ranson ≥3 = severe; BISAP ≥3 = high mortality risk
- Avoid aspirin/NSAIDs acutely; opioids ARE appropriate for pain
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