Recognition
- Oliguria or anuria: Reduced urine output (< 400 mL/day) or absent urine output
- Fluid retention: Peripheral edema, facial puffiness, rapid weight gain
- Uremic symptoms: Fatigue, nausea, confusion (accumulation of waste products)
- Elevated blood pressure from fluid overload. Or low blood pressure if prerenal cause persists
- Muscle cramps from electrolyte imbalances
- Severe cases: Pericarditis, seizures, coma
- Context: Recent hospitalization, major surgery, sepsis, nephrotoxic drug exposure (NSAIDs, aminoglycosides, contrast dye), or severe dehydration
- Prerenal (60-70%): Reduced renal blood flow — dehydration, hemorrhage, heart failure, sepsis. Kidneys are structurally intact but underperfused.
- Intrinsic/Renal (25-30%): Direct kidney damage — acute tubular necrosis (ATN), glomerulonephritis, acute interstitial nephritis
- Postrenal (5-10%): Urinary obstruction — kidney stones, BPH, tumors
MT Relevance
- Active AKI is a contraindication: Fluid overload, electrolyte imbalances (hyperkalemia — cardiac arrest risk), and uremic symptoms make massage inappropriate during the acute phase
- Recovery phase: With stable kidney function and physician clearance, gentle relaxation massage supports recovery and reduces stress. Use gentle pressure (tissue fragility from uremia and fluid shifts).
- Positioning: Fluid-overloaded clients may not tolerate flat supine (pulmonary edema risk) — semi-reclined preferred
- Deep tissue work: Avoid during recovery — electrolyte imbalances affect muscle and cardiac function
- NSAID caution: Advise against NSAIDs for post-massage soreness — they are nephrotoxic
- Medications: ACE inhibitors and ARBs used post-recovery cause hypotension — slow position changes
Required Actions
- Confusion + edema + reduced urine output: Uremic encephalopathy — requires immediate medical intervention
- Signs of hyperkalemia (muscle weakness, palpitations, cardiac irregularity): Life-threatening; emergency referral
- Client in post-AKI recovery reports decreased urine output or new swelling: Refer back to nephrologist — possible recurrence or progression to CKD
Key Takeaways
- AKI is a sudden decline in kidney function that is potentially reversible with prompt treatment
- Prerenal causes (dehydration, hypotension) are the most common and most easily corrected
- Massage is contraindicated during active AKI. Gentle treatment is appropriate post-recovery with physician clearance
- Hyperkalemia from AKI is a life-threatening complication (cardiac arrest risk)
- AKI can progress to chronic kidney disease if severe or prolonged