Reference — Med-Surg
Paracentesis Nursing Care Reference
Draining ascitic fluid relieves the pressure that makes cirrhotic patients breathless and miserable — and shifts enough fluid to drop the blood pressure if you’re not watching. The nurse’s job spans all three phases, with two safety anchors: void before, and watch the pressure after.
Educational use only. Volume limits, albumin replacement thresholds, and coagulation requirements follow provider orders and facility protocol. This material supports nursing education and exam review. It is not medical advice and is not a substitute for clinical judgment, institutional policy, or medical direction. Always follow facility protocols and current provider orders.
Why it’s done: therapeutic paracentesis relieves tense ascites causing pain or breathing difficulty; diagnostic paracentesis samples the fluid — most importantly to rule out spontaneous bacterial peritonitis in a cirrhotic patient with fever, abdominal pain, or new confusion.
Before, During & After
Before
- •Confirm informed consent is signed and the timeout is done
- •Have the patient VOID immediately before — an empty bladder is out of the needle's path and prevents bladder perforation
- •Baseline vitals, weight, and abdominal girth (mark the spot you measure)
- •Review coagulation status and platelets per policy; gather kit, drainage container, and albumin if ordered
- •Position upright — high Fowler's or sitting on the edge of the bed — so fluid pools low and the bowel floats away from the needle
During
- •Support the patient and maintain the sterile field; the provider inserts the needle/catheter below the umbilicus
- •Monitor vitals closely — especially blood pressure — as fluid comes off
- •Track the volume and the appearance of fluid (clear/straw is typical; cloudy suggests infection, bloody suggests a vascular tap)
- •Watch for dizziness, pallor, tachycardia, or a falling BP — signs the fluid shift is dropping intravascular volume
After
- •Apply a dressing; monitor the site for leakage or bleeding
- •Recheck vitals, weight, and girth; compare to baseline to document the volume removed and the effect
- •Give albumin as ordered after large-volume taps (typically >5 L) to prevent circulatory dysfunction
- •Send fluid for ordered studies (cell count/culture for SBP, albumin, cytology)
- •Continue to watch for delayed hypotension, signs of infection, and persistent leakage
The Post-Tap Hypotension Risk
Removing several liters quickly drops intra-abdominal pressure, and fluid rushes from the vascular space back into the peritoneum — a phenomenon called post-paracentesis circulatory dysfunction. The result is hypotension, tachycardia, and worsening kidney function. Albumin replacement after large-volume taps (commonly given for removal beyond about 5 L) pulls fluid back into the vessels and prevents this. Monitor blood pressure during and after, and don’t dismiss post-procedure dizziness.
NCLEX Pearls
- ✦Have the patient void immediately before paracentesis — empties the bladder out of the needle's path.
- ✦Position upright (high Fowler's or sitting) so fluid pools low and bowel floats away from the needle.
- ✦Watch blood pressure during and after — large-volume removal causes fluid shifts and hypotension.
- ✦Albumin is given after large-volume taps to prevent circulatory dysfunction.
- ✦Cloudy fluid or fever/abdominal pain → think spontaneous bacterial peritonitis; send fluid for cell count and culture.
- ✦Monitor the site for leakage and the patient for delayed hypotension.
Related Resources
Standards & sources
Fact-checked Jun 21, 2026This page is written to align with Academy of Medical-Surgical Nurses (AMSN) · Current medical-surgical nursing standards. It is an educational summary, not a citation of any single document — always verify specific doses, values, and protocols against current guidelines and your facility policy. How we source content →