Orris

what are your internal medicine library

Finding Sources
Finding Sources
Finding Sources
Finding Sources
Finding Sources
Finding Sources
Here is the full library, organized by specialty. The Internal Medicine titles are highlighted, and the complete collection spans 30+ specialties:

Internal Medicine (Direct)

TitleNotes
Harrison's Principles of Internal Medicine, 22E (2025)The flagship IM reference
Goldman-Cecil Medicine, 2-Volume SetClassic comprehensive IM text
Frameworks for Internal MedicineClinical reasoning guide
Symptom to Diagnosis: An Evidence Based Guide, 4eSymptom-based approach
The Washington Manual of Medical TherapeuticsPractical therapeutics handbook
Firestein & Kelley's Textbook of Rheumatology, 2-Volume Set
Rheumatology, 2-Volume Set (2022, Elsevier)

Full Library by Specialty

SpecialtyTitles
AnatomyGray's Anatomy for Students, Netter's Atlas, Color Atlases (x4), Imaging Anatomy
AnesthesiologyBarash Clinical Anesthesia 9e, Miller's Anesthesia 10e, Morgan & Mikhail 7e
BiochemistryHarper's 32e, Lippincott Illustrated Reviews, Basic Medical Biochemistry 6e
CardiologyBraunwald's Heart Disease 2-Vol, Fuster & Hurst's The Heart 15e, Clinical Echocardiography
Community MedicinePark's Textbook of Preventive & Social Medicine
DermatologyAndrews' (Atlas + Clinical), Fitzpatrick's 2-Vol, Dermatology 2-Vol 5e
EmbryologyLangman's Medical Embryology, The Developing Human
Emergency MedicineRosen's 2-Vol, Tintinalli's, Roberts & Hedges' Clinical Procedures
ENTCummings Otolaryngology, Scott-Brown's (3 vols), KJ Lee's Essential Otolaryngology, Shambaugh
Family MedicineTextbook of Family Medicine 9e, Swanson's Review, Pfenninger & Fowler's Procedures
Forensic MedicineDiMaio's Forensic Pathology, PC Dikshit, Parikh's, The Essentials 36e (2026), Forensic Anthropology, Brogdon's Forensic Radiology
GastroenterologySleisenger & Fordtran's, Yamada's 7e (3-Vol), Clinical GI Endoscopy 3e
General SurgerySchwartz's 11e, Sabiston, Bailey & Love's 28e, Fischer's Mastery 8e, Mulholland & Greenfield's 7e, Current Surgical Therapy 14e, S Das Manual 13e, Pye's Surgical Handicraft
GeneticsThompson & Thompson 9e, Emery's Elements
HistologyJunqueira's Basic Histology 17e, Histology: A Text & Atlas
ImmunologyCellular & Molecular Immunology, Janeway's Immunobiology 10e, Roitt's Essential
Internal Medicine(see above)
Laboratory MedicineHenry's Clinical Diagnosis, Tietz Textbook 7e, Quick Compendium of Clinical Pathology 5e
MicrobiologyJawetz Melnick & Adelberg's 28e, Medical Microbiology 9e, Sherris & Ryan's 8e
NephrologyBrenner & Rector's The Kidney 2-Vol, Comprehensive Clinical Nephrology 7e, NKF Primer 8e
NeurologyAdams & Victor's 12e, Bradley & Daroff's 2-Vol, Localization in Clinical Neurology 8e, Plum & Posner's Stupor & Coma
NeuroscienceKandel's Principles of Neural Science 6e, Neuroanatomy Through Clinical Cases 3e, Neuroscience: Exploring the Brain 5e
OB/GYNBerek & Novak's Gynecology, Creasy & Resnik's Maternal-Fetal Medicine
OphthalmologyKanski's Clinical Ophthalmology 10e, Wills Eye Manual
OrthopedicsCampbell's Operative Orthopaedics 15e (2026), Rockwood & Green's Fractures 10e (2025), Miller's Review of Orthopaedics 9e
PathologyRobbins & Kumar Basic Pathology, Robbins Cotran & Kumar Pathologic Basis of Disease
PediatricsRed Book 2021, Harriet Lane Handbook 23e
PharmacologyGoodman & Gilman's 13e, Katzung's 16e, Lippincott Illustrated Reviews
PhysiologyGuyton & Hall, Ganong's 26e, Costanzo 7e, Medical Physiology
PsychiatryKaplan & Sadock's Comprehensive (2-Vol), Synopsis of Psychiatry, Stahl's Psychopharmacology, Maudsley Prescribing Guidelines 15e, Maudsley Deprescribing, The Clozapine Handbook
PulmonologyFishman's Pulmonary Diseases 2-Vol, Murray & Nadel's Respiratory Medicine 2-Vol
RadiologyGrainger & Allison's Diagnostic Radiology
UrologyCampbell-Walsh-Wein Urology 3-Vol, Hinman's Atlas of Urologic Surgery, Smith & Tanagho's General Urology 19e
The library holds 110+ major textbooks across 30+ specialties, with the most current editions available (several from 2025-2026). You can ask me questions from any of these and I'll pull directly from the relevant chapters.

give detail of paracentesis

Reading File
Finding Sources
Finding Sources
Reading File
Reading File
Reading File
Reading File
Reading File
Reading File
Loading Image
Loading Image
Reading File
Reading File
I now have comprehensive data from multiple textbooks. Here is the full detailed answer:

Paracentesis - Comprehensive Overview

Definition & History

Paracentesis (abdominal paracentesis / peritoneocentesis) is the needle-based removal of intraperitoneal fluid (ascites). It is one of the oldest medical procedures, dating to approximately 20 BC. It was re-described in the modern literature by Saloman in the early 20th century. With the advent of diuretics in the 1950s it fell out of favor, but controlled trials from the late 1980s onward restored its reputation by demonstrating the safety and efficacy of large-volume paracentesis (LVP).
  • Roberts and Hedges' Clinical Procedures in Emergency Medicine

Types

TypePurposeVolume
DiagnosticAnalyze fluid to determine cause of ascites or detect infection20-50 mL
Therapeutic (LVP)Relieve symptoms of tense/refractory ascites>5 L

Indications

  • New-onset ascites (to establish etiology)
  • Suspected spontaneous bacterial peritonitis (SBP) in any patient with known ascites and clinical deterioration
  • Tense ascites causing cardiorespiratory compromise (dyspnea, early satiety)
  • Refractory ascites - fluid not adequately controlled by diuretics
  • Intra-abdominal trauma or suspected acute pancreatitis (peritoneal lavage variant)
  • Roberts and Hedges', Yamada's Textbook of Gastroenterology

Contraindications

Absolute:
  • Uncorrected coagulopathy WITH clinically evident fibrinolysis or disseminated intravascular coagulation (DIC)
  • Bowel dilation or obstruction
  • Abdominal hematoma, engorged collateral veins, or superficial infection at the puncture site
Relative/Caution:
  • Pregnancy (technique must be altered)
  • Previous abdominal surgery with adhesions (use ultrasound guidance)
Note: Coagulopathy alone is NOT an absolute contraindication to diagnostic paracentesis, especially with a small-gauge needle.
  • Roberts and Hedges', Yamada's

Preferred Sites

Left lower quadrant (preferred) - midway between the anterior superior iliac spine (ASIS) and umbilicus. This avoids the inferior hypogastric artery which lies midway between the ASIS and the pubic tubercle.
Midline (infraumbilical) - alternative site, avoids lateral vessels but has higher failure rate in obese patients.
Avoid: surgical scars, visible collateral veins, areas of overlying cellulitis.
Abdominal paracentesis needle insertion technique showing the syringe entering the peritoneal cavity at the left lower quadrant site
Figure: Abdominal paracentesis technique - Pye's Surgical Handicraft

Equipment

  • Antiseptic solution and sterile drape
  • Local anesthetic (1% lidocaine)
  • Needle (20-22 gauge for diagnostic; larger bore or peritoneal dialysis catheter for therapeutic)
  • Large syringe (35 mL+)
  • High-pressure tubing and evacuated container (for LVP)
  • Ultrasound (strongly recommended)

Procedure (Step-by-Step)

  1. Explain procedure to patient and obtain consent
  2. Position the patient supine; slight lateral tilt toward the intended side if needed
  3. Ultrasound assessment - identify the largest fluid pocket, avoid bowel loops (appear as floating structures in anechoic fluid). Fluid appears anechoic (black) on ultrasound. Look in Morrison's pouch (hepatorenal), splenorenal space, and pelvis (behind bladder).
  4. Clean abdominal wall thoroughly with antiseptic solution
  5. Infiltrate local anesthetic down to the peritoneum at the chosen site
  6. Insert needle along the same anesthetized tract into the peritoneal cavity. Use a "Z-track" technique to reduce leak
  7. Aspirate fluid: 20-50 mL for diagnostic, drain desired volume for therapeutic
  8. Send samples for biochemical, bacteriological, and cytological examination
  9. Do not remove fluid too rapidly to avoid hypovolemia

Ascitic Fluid Analysis

Appearance

AppearanceSignificance
Clear, straw-yellowNormal uncomplicated ascites
CloudyWBC >5,000/mm³
Frankly purulentWBC >50,000/mm³ - suggests secondary peritonitis or abscess
Milky (chylous)Triglycerides >200 mg/dL
Pink/bloodyRBC >10,000/mm³; frank blood >20,000/mm³
Tea/black coloredHemorrhagic pancreatitis
GreenBile - gallbladder or intestinal perforation

Routine Tests

  • Gross appearance
  • Total protein
  • Albumin (with simultaneous serum albumin for SAAG calculation)
  • WBC with differential
  • Bacteriological cultures (inoculate blood culture bottles at bedside)

Focused Tests (as indicated)

  • Cytology (malignant ascites - submit large volume for higher yield)
  • Amylase (pancreatic ascites)
  • AFB smear/culture + adenosine deaminase (peritoneal TB)
  • Glucose + LDH (secondary peritonitis if PMN >250/mm³)
  • Triglycerides (milky fluid)
  • RBC count (bloody fluid)

Serum-Ascites Albumin Gradient (SAAG)

SAAG = Serum albumin - Ascites albumin (specimens obtained on same day)
SAAGInterpretationExamples
≥ 1.1 g/dLSinusoidal hypertension (portal HTN)Cirrhosis, heart failure, Budd-Chiari, constrictive pericarditis
< 1.1 g/dLPeritoneal processMalignancy, TB peritonitis, nephrotic syndrome
SAAG correlates well with the hepatic venous pressure gradient (r = 0.72). A SAAG of 1.1 g/dL corresponds to an HVPG of ~11-12 mmHg, the threshold for cirrhotic ascites.
Accuracy is reduced if: samples not simultaneous, very low serum albumin, chylous ascites (falsely high SAAG), or serum hyperglobulinemia >5 g/dL (corrected SAAG = uncorrected SAAG × (0.16 × serum globulin [g/dL] + 2.5)).
Diagnostic flowchart for new-onset ascites using SAAG and ascites total protein to guide further workup
Figure: Approach to new-onset ascites - Yamada's Textbook of Gastroenterology

Causes of Ascites (Frequency)

Cause%
Parenchymal liver disease (cirrhosis, ~80% alcoholic)80%
Malignancy10%
Mixed5%
Heart failure5%
Tuberculosis2%
Pancreatic1%
Nephrotic, dialysis, others<1% each

Pathophysiology of Ascites Formation

  1. Elevated hydrostatic pressure - cirrhosis, CHF, constrictive pericarditis, IVC obstruction, Budd-Chiari
  2. Decreased osmotic pressure - nephrotic syndrome, protein-losing enteropathy, malnutrition, hepatic insufficiency
  3. Fluid production exceeding resorption - infections (bacterial, TB, parasitic), neoplasms

Post-Paracentesis Circulatory Dysfunction (PCD)

Occurs in 15-20% of patients after LVP (>5 L). Characterized by:
  • Hypovolemia (often asymptomatic)
  • Hyponatremia
  • Impaired renal function
  • Activation of renin-angiotensin system
May occur several hours to days after the procedure.

Albumin Replacement After LVP

Volume RemovedAlbumin Recommendation
< 5 LNOT routinely recommended
> 5 L6-8 g IV albumin per liter removed (or 50 g total)
Colloid dextran 70 is an alternative for cost reasons, but albumin remains the standard. No study has shown a survival advantage of one expander over another.

Complications

Systemic

  • Hyponatremia
  • Renal dysfunction / hepatorenal syndrome
  • Hepatic encephalopathy
  • Hemodynamic compromise (PCD)
  • Significant bleeding
  • Death (rare)

Local

  • Persistent ascitic fluid leak at wound site
  • Abdominal wall hematoma
  • Localized infection

Intraperitoneal

  • Perforation of vessels or viscera
  • Generalized peritonitis
  • Abdominal wall abscess

Special Situations

  • Pregnancy: Technique must be altered (site selection and US guidance essential)
  • Minimal fluid + trauma/pancreatitis: Perform peritoneal lavage with warmed normal saline; examine effluent for blood and/or amylase
  • No fluid obtained: Perform under real-time sonographic guidance

CPT / Billing Codes

  • 49080 - Peritoneocentesis/abdominal paracentesis/peritoneal lavage - initial
  • 49081 - Subsequent
Sources: Roberts and Hedges' Clinical Procedures in Emergency Medicine; Yamada's Textbook of Gastroenterology 7e; Pye's Surgical Handicraft 22e; Pfenninger & Fowler's Procedures for Primary Care; Tietz Textbook of Laboratory Medicine 7e
This is a shared conversation. Sign in to Orris to start your own chat.