Sunday, August 10, 2025

Gastrointestinal System (GIT) History Taking and clinical examination

 

Gastrointestinal System (GIT) History Taking and clinical examination 


GASTROINTESTINAL SYSTEM HISTORY TAKING 


1. Patient Demographics

  • Name, Age, Sex, Occupation, Address
    • Why relevant:
      • Age: Infantile hypertrophic pyloric stenosis (infants), appendicitis (children), gallstones/peptic ulcer (adults), malignancy (elderly)
      • Sex: Gallstones more in females, alcoholic liver disease more in males
      • Occupation: Chemical exposure (liver disease), sedentary lifestyle (constipation)
      • Address: Endemic hepatitis A/E areas, cholera outbreaks

2. Chief Complaint(s) with Duration

  • State in patient’s words, then translate to medical terms.
    • Example: “Pain in upper stomach since 3 days” → “Epigastric pain × 3 days”
    • Clinical relevance: Duration helps differentiate acute (e.g., acute appendicitis) from chronic (e.g., peptic ulcer disease) conditions.

3. History of Presenting Illness

A. Symptom Analysis (SOCRATES / OLD CARTS)


1. Abdominal Pain

  • Location:
    • RUQ → Acute cholecystitis, hepatitis
    • Epigastrium → Gastritis, peptic ulcer, pancreatitis
    • Periumbilical → Early appendicitis, small bowel pathology
    • LLQ → Sigmoid diverticulitis, colitis
    • Generalized → Peritonitis, gastroenteritis
  • Onset: Sudden (perforation, ischemia) vs gradual (gastritis, tumor)
  • Character: Colicky (intestinal obstruction), burning (GERD), dull ache (hepatitis)
  • Radiation:
    • To back → Pancreatitis, posterior penetrating ulcer
    • To shoulder → Diaphragmatic irritation (subphrenic abscess)
  • Relation to meals:
    • Pain after meals → Gastric ulcer
    • Pain relieved by meals → Duodenal ulcer
  • Relieving factors: Leaning forward (pancreatitis), vomiting (pyloric obstruction)
  • Associated symptoms: Vomiting (gastritis), jaundice (hepatitis), fever (cholecystitis)

2. Vomiting

  • Timing:
    • Early morning → Raised ICP or pregnancy
    • Immediately after meals → Gastric outlet obstruction
    • Hours after meals → Gastroparesis
  • Content:
    • Food particles → Delayed gastric emptying
    • Bilious → Obstruction distal to pylorus
    • Coffee-ground → Gastric/duodenal ulcer bleed
    • Fresh blood → Mallory–Weiss tear, variceal bleed
    • Feculent → Distal intestinal obstruction
  • Frequency: Persistent (gastroenteritis), intermittent (partial obstruction)

3. Altered Bowel Habits

  • Diarrhea: Acute watery (infective), chronic (>4 weeks → IBD, malabsorption)
  • Constipation: Functional, hypothyroidism, obstruction (colorectal cancer)
  • Alternating diarrhea/constipation: IBS, carcinoma colon
  • Mucus in stools: IBS, amoebic dysentery
  • Blood in stools:
    • Fresh blood → Hemorrhoids, fissure, carcinoma rectum
    • Mixed with stool → Colon cancer, ulcerative colitis
    • Black tarry (melena) → Upper GI bleed

4. GI Bleeding

  • Hematemesis:
    • Bright red → Varices, gastric ulcer
    • Coffee-ground → Gastritis, ulcer bleed
  • Melena: Peptic ulcer, varices, small bowel tumors
  • Hematochezia: Lower GI bleed, massive upper GI bleed

5. Jaundice

  • Onset: Sudden (viral hepatitis), gradual (cholangiocarcinoma)
  • Associated:
    • Dark urine & pale stools → Obstructive jaundice
    • Fever + chills → Ascending cholangitis
    • Pruritus → Cholestasis

6. Abdominal Distension

  • Acute: Perforation, obstruction, peritonitis
  • Chronic: Ascites (cirrhosis, TB peritonitis), tumors
  • Relation to position: Ascites increases on lying down

7. Dysphagia

  • Solids only: Esophageal stricture, carcinoma
  • Solids then liquids: Progressive carcinoma
  • Liquids > solids: Achalasia cardia
  • Painful swallowing (odynophagia): Esophagitis

8. Appetite & Weight Changes

  • Anorexia: Hepatitis, carcinoma stomach
  • Early satiety: Gastric cancer, ascites
  • Unintentional weight loss: Malignancy, malabsorption

4. Associated Symptoms

  • Fever → Typhoid, liver abscess, cholangitis
  • Fatigue → Chronic liver disease, anemia from GI bleed
  • Tenesmus → Rectal carcinoma, proctitis
  • Steatorrhea → Chronic pancreatitis, celiac disease

5. Past History

  • Peptic ulcer: Risk of recurrence or complications
  • Jaundice: Recurrent → CBD stones, hemolysis
  • Hepatitis: Viral hepatitis, autoimmune
  • GI surgery: Adhesions causing obstruction
  • Blood transfusions: Hepatitis B/C risk

6. Personal History

  • Diet: High fat → Gallstones; low fiber → Constipation
  • Alcohol: Alcoholic liver disease, pancreatitis
  • Tobacco: Esophageal, gastric cancer
  • Bowel habits: IBS, hemorrhoids
  • Water source: Hepatitis A/E, cholera risk

7. Family History

  • Colon cancer, polyposis syndromes, IBD, Wilson’s disease

8. Menstrual/Obstetric History (Females)

  • Amenorrhea + abdominal distension: Pregnancy
  • Menstrual irregularity: PCOS, hypothyroidism-related GI effects

9. Drug History

  • NSAIDs → Peptic ulcer
  • Steroids → Masked infection, ulcer
  • Anti-TB drugs → Hepatitis
  • Iron → Black stools (benign cause)

10. Socioeconomic & Environmental History

  • Poor sanitation → Helminthic infestations
  • Slum living → Hepatitis A/E, cholera
  • Travel → Typhoid, traveler’s diarrhea

🍽️ Gastrointestinal (GIT) System Examination: Technical Terminology 


🪞 1. Inspection (Looking)

Term Meaning
Scaphoid abdomen
Sunken-in appearance of the abdomen — may be seen in malnutrition or cachexia



Distended abdomen


Swollen abdomen — may indicate gas, fluid, mass, or obstruction
Peristalsis

Visible wave-like movements on the abdomen — seen in intestinal obstruction
Pulsations

Visible throbbing — may suggest abdominal aortic aneurysm
Striae
Stretch marks — seen in obesity, pregnancy, or Cushing’s syndrome
Surgical scars

Previous surgical sites — helpful for history and differential diagnosis
Umbilicus

Normally centrally placed and inverted; everted may suggest ascites or mass
Caput medusae

Dilated tortuous veins around the umbilicus — due to portal hypertension
Jaundice

Yellowish discoloration of the skin/sclera — indicates liver dysfunction
Clubbing

Bulbous enlargement of fingertips — seen in cirrhosis, IBD
Spider angioma
Small red spots with radiating vessels — seen in liver disease
Gynecomastia
Male breast enlargement — can be seen in cirrhosis

2. Palpation (Feeling)

Term Meaning
Superficial palpation Gentle pressing to detect tenderness or rigidity



Deep palpation



Firm pressing to feel deep organs like liver, spleen, kidney


Rebound tenderness


Pain when pressure is suddenly released — indicates peritonitis
Guarding

Involuntary tightening of abdominal muscles — protective reflex in peritonitis
Rigidity
Board-like hardness of abdominal wall — suggests severe peritonitis
Murphy’s sign


Pain on pressing under right costal margin during deep inspiration — indicates cholecystitis

McBurney’s point


One-third from ASIS to umbilicus — tenderness here indicates appendicitis
Rovsing’s sign

Pain in right lower abdomen when pressing on the left — suggests appendicitis
Palpable liver


Normally not felt below costal margin; if palpable — could indicate hepatomegaly

Palpable spleen
Felt below the left costal margin — suggests splenomegaly

Ballotable kidney
Kidney felt between two hands (anterior-posterior) — usually indicates enlargement
Fluid thrill
Wave-like impulse felt — suggests massive ascites
Shifting dullness
Percussion note changes when patient changes position — confirms free fluid (ascites)

🥁 3. Percussion (Tapping)

Term Meaning
Tympanic note Drum-like sound — normal over air-filled intestines
Dull note
Flat sound — over solid organs like liver or fluid-filled area (ascites)
Liver span


Measured in midclavicular line — normal: 6–12 cm


Splenic dullness
Normally not percussible; dullness suggests splenomegaly

Shifting dullness As above; suggests free peritoneal fluid



Fluid thrill




Confirms presence of large volume of ascitic fluid

🎧 4. Auscultation (Listening)

Term Meaning
Bowel sounds
Normal gurgling sounds every 5–15 seconds
Hyperactive bowel sounds
Loud and frequent — seen in early obstruction or gastroenteritis
Absent bowel sounds
No sound for over 2 minutes — suggests paralytic ileus or late obstruction
Bruits

Whooshing sounds over arteries — suggests turbulent blood flow (e.g., renal artery stenosis)
Succussion splash
Splashing sound heard over the stomach — seen in gastric outlet obstruction

🧠 Other Important Terms

Term Meaning
Hepatomegaly Enlarged liver
Splenomegaly Enlarged spleen
Ascites Fluid accumulation in the peritoneal cavity
Peritonitis Inflammation of the peritoneum — often with guarding, rigidity, rebound tenderness
Portal hypertension Increased pressure in portal vein system — leads to ascites, caput medusae, varices
Hernia Protrusion of organ/tissue through abdominal wall — seen as bulge
Rectal examination Digital exam of rectum to check for masses, bleeding, tenderness
Digital rectal exam (DRE) Using finger to assess rectum and prostate (in males)

🔁 GIT Surface Anatomy Landmarks

Structure Surface Landmark
Liver
Right hypochondrium, below costal margin
Gallbladder
Intersection of right costal margin and lateral border of rectus muscle
Appendix McBurney’s point (RLQ)
Spleen Left hypochondrium, under ribs 9–11
Kidneys
Posterior abdomen, T12–L3 vertebrae area
Stomach Epigastrium and left upper quadrant


GASTROINTESTINAL EXAMINATION — STEP BY STEP


A. Preparation & basic checks (before you touch the patient)

  1. Explain the exam; obtain consent; ensure privacy and a chaperone if needed.
  2. Ask patient to empty bladder if possible.
  3. Position: supine, arms at sides, knees slightly flexed (relaxes abdominal wall). Also have patient sit/stand when requested (hernia/veins).
  4. Inspect lighting and expose abdomen from nipples to mid-thigh.
  5. Record vital signs: pulse, BP, temperature, respiratory rate, oxygen saturation. (Abnormal vitals = urgent).

B. General inspection & systemic signs (head-to-toe glance)

Inspect the whole patient for systemic signs that point to GI disease:

  • General appearance — cachexia/wasting → chronic disease, malignancy, IBD.
  • Skin: jaundice (hepatitis/obstructive jaundice), bruising/spider nevi/palmar erythema (chronic liver disease), xanthelasma (cholestasis/hyperlipidemia), excoriations (pruritus of cholestasis).
  • Hands: asterixis (flapping) → hepatic encephalopathy; leukonychia/koilonychia → chronic disease/iron deficiency.
  • Eyes & mouth: conjunctival pallor → anemia from GI bleed; angular stomatitis, glossitis → malabsorption. Fetor hepaticus (distinctive breath) → severe liver failure.
  • Chest & breasts: gynaecomastia (chronic liver disease), chest wall scars (previous surgery).
  • Abdomen (quick look): distension, visible peristalsis (obstruction), surgical scars (adhesions), dilated veins (caput medusae → portal hypertension), visible pulsation (AAA).

Why: These signs help triage: e.g., jaundice + pruritus → obstructive cholestasis; weight loss + mass → malignancy.


C. Abdominal examination — correct sequence: INSPECT → AUSCULTATE → PERCUSS → PALPATE

1. Inspect (stand at foot and right side)

  • Contour: flat, scaphoid, distended (ascites; obstruction).
  • Scars / stomas / fistulae — note location & type (past surgery, ileostomy).
  • Striae / pigmentation / bruising (Cushing’s, chronic disease).
  • Veins: caput medusae (portal hypertension), dilated abdominal wall veins.
  • Pulsation: epigastric pulsation (AAA if strong & expansile).
  • Visible peristalsis: suggests small-bowel obstruction.
  • Masses: visible lumps or hernias on coughing/standing.

Clinical connections: Distension + fluid thrill/shifting dullness → ascites (cirrhosis, malignancy, TB). Visible peristalsis + vomiting → obstruction.


2. Auscultation

  • Use diaphragm; listen before palpation:
    • Bowel sounds: normal (5–35/min).
      • Hyperactive, high-pitched, tinkling → small-bowel obstruction.
      • Hypoactive or absent → ileus or peritonitis (if absent in all quadrants).
      • Borborygmi (loud rumbling) → gastroenteritis, hunger.
    • Bruits: listen over aorta, epigastrium, renal arteries, iliac arteries.
      • Systolic bruit → renal artery stenosis, mesenteric ischemia, AAA.
    • Friction rubs over liver/spleen → rare but suggest tumour/abscess/inflammation of capsule.

Tip: Succussion splash (rocking patient) audible if gastric outlet obstruction.


3. Percussion

  • General percussion to map tympany (gas) vs dullness (mass, organ, fluid).
  • Liver span (midclavicular line): percuss from lung resonance down to liver dullness and from abdomen tympany up — normal ~6–12 cm (adult) — indicates hepatomegaly if increased.
  • Splenic percussion: Percuss Traube’s space / use Castell’s sign — change from tympany to dullness on inspiration suggests splenomegaly (splenic enlargement = malaria, kala-azar, portal hypertension, haematological disease).
  • Shifting dullness: test for ascites: percuss center to flank -> mark; patient rolls to side -> dullness shifts = ascites.
  • Fluid thrill / fluid wave: positive in moderate-large ascites (check with helper).
  • Percussion for gastric bubble: tympany under left costal margin.

Clinical connections: Increased liver span → hepatomegaly (congestive hepatopathy, hepatitis, fatty liver, malignancy). Fixed dull mass → tumour. Shifting dullness/fluid thrill → ascites.


4. Palpation

Start with light (superficial) then deep palpation in all quadrants. Ask about tenderness early.

  • Light palpation: detect guarding, superficial masses, tenderness.
    • Guarding (voluntary) vs rigidity (involuntary): rigidity = peritonitis (surgical abdomen).
  • Deep palpation: feel for masses, organomegaly, aortic pulsation. Note size, location, consistency, mobility, tenderness.
  • Liver palpation: place right hand flat on RUQ, fingers parallel to costal margin, ask patient to take a deep breath. Hooking technique or traditional palpation. Characteristics:
    • Smooth, firm, tender → hepatitis, congestive hepatopathy, acute hepatitis (tender).
    • Hard, nodular → cirrhosis or tumour.
  • Spleen palpation: start in right lateral decubitus or supine with patient on right side; palpate from right iliac fossa toward left costal margin during inspiration. Large spleen is palpable below costal margin in splenomegaly.
  • Kidney palpation: ballottement for renal masses; palpate costovertebral angle for tenderness (pyelonephritis, renal stone).
  • Aortic pulse: palpate for expansile/pulsatile mass >3 cm in elderly → suspect AAA.
  • Palpable mass assessment: location, relation to breathing, pulsatility, mobility (respiratory movement suggests organ origin).

Special tenderness tests:

  • Murphy’s sign: RUQ palpation with inspiration — sudden stop in inspiration = positive → acute cholecystitis.
  • McBurney’s point tenderness / rebound tenderness → appendicitis / peritonitis.
  • Rovsing’s sign: left lower quadrant pressure causes right lower quadrant pain → appendicitis.
  • Psoas sign: pain on passive extension (or active flexion) of right hip → retrocecal appendicitis.
  • Obturator sign: pain on internal rotation of flexed right hip → pelvic appendix.
  • Carnett’s sign: increase in pain when patient tenses abdominal muscles (raise head) → abdominal wall source (e.g., rectus sheath hematoma) rather than intra-abdominal.
  • Heel-jar (Markle) / cough test: pain on heel striking or cough suggests peritonitis (appendicitis/peritonitis).

Interpretation: Localized peritonism → surgical abdomen. Diffuse tenderness + rigidity → generalized peritonitis (urgent).


D. Examination of hernia & inguinoscrotal region

  1. Inspect standing and ask to cough / strain (Valsalva).
  2. Palpate superficial inguinal ring and deep ring; reduce hernia to assess reducibility.
  3. Note scrotal swelling: transillumination, expansile cough impulse, tenderness (strangulation).
  4. Distinguish direct (bulge on cough at Hesselbach’s triangle) vs indirect (through deep inguinal ring) clinically if required.

Why: Hernias can cause obstruction/strangulation — surgical referral if tender and irreducible.


E. Per-rectal (PR) and female pelvic examination (if indicated)

  • PR exam (on indicated cases; get consent & chaperone):
    • Sphincter tone (neuro), palpable masses, tenderness, impacted stool, prostate (in men): size, consistency, nodules (prostate cancer), boggy/tender prostate (prostatitis).
    • Check glove for stool color (melena = black/tarry), frank blood.
    • Do FOBT (fecal occult blood) if indicated.
  • Female pelvic exam when pain/bleeding suggests gynae cause — may include speculum and bimanual exam (do with consent/indication).

Connections: PR mass or blood → colorectal cancer, fissure, haemorrhoids, IBD.


F. Quick neurologic/mental check related to GI

  • Asterixis, confusion → hepatic encephalopathy.
  • Peripheral neuropathy → malabsorption (e.g., B12 deficiency in celiac disease).

G. Wrap-up tests and bedside adjuncts

  • Dressing & safety: keep patient warm, allow rest.
  • Bedside tests you can do: urine dipstick (bilirubin), stool for occult blood, bedside ultrasound (if available) for ascites/hepatosplenomegaly, abdominal X-ray in suspected obstruction/perforation.
  • Document: location of tenderness, organ measurements (liver span in cm), presence of ascites, type of bowel sounds, positive signs (Murphy, Rovsing, etc.), vital signs.

H. Red flags — immediate action needed

  • Peritonitis (rigidity, rebound, severe pain) → urgent surgical review.
  • Hypotension + severe GI bleed (hematemesis/hematochezia) → resuscitate; urgent GI/surgical input.
  • Signs of sepsis (fever, tachycardia, hypotension) with abdominal source → urgent management.
  • Suspected obstructed/strangulated hernia → urgent surgery.

I. Practical OSCE / bedside checklist (short)

  1. Consent, chaperone, exposure.
  2. Vitals.
  3. Inspect (patient supine & standing).
  4. Auscultate 4 quadrants + bruits.
  5. Percuss all quadrants + liver & spleen span.
  6. Palpate superficial → deep, check for guarding/rigidity.
  7. Special signs (Murphy, Rovsing, Psoas, Obturator, Carnett).
  8. Hernia exam standing + cough.
  9. PR exam if indicated.
  10. Record findings, provisional differential, red-flag plan.



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