e Abdominal Pain Flashcards
What are the general characteristics for acute abdominal pain?
- Evaluation of acute abdominal pain requires rapid assessment of likely causes & early initiation of appropriate Tx
- DDx should extend beyond intra-abdominal pathology
A. Epigastric pain : MI, PE, pneumonia
B. Abd pain : DKA
What are the ddx an abrupt onset abdominal pain?
- Perforated viscus
- SBO
- Ureterocalculus
- Acute pancreatitis
- Ischemic bowel
- Ruptured vessel (portal, AAA)
- Acute cholecystitis
- Ruptured spleen
- Acute urinary retention
What are common RUQ ddx?
- ACute cholecystitis
- Duodenal ulcer
- Hepatitis
- Congestive hepatomegaly
- Pyelonephritis
- Appendicitis
- Right pneumonia
What are common RLQ ddx?
- Appendicitis
- Salpingitis
- Tubo-ovarian abscess
- Ruptured ectopic pregnancy
- Renal/ureteric stone
- Incarcerated hernia
- Mesenteric adenitis
- Meckle’s Diverticulum
- Crohn’s dz
- Perforated ceacum
- Psoas abscess
What are common LLQ ddx?
- Intestinal obstruction
- Acute pancreatitis
- Early appendicitis
- Mesenteric thrombosis
- Aortic aneurysm
- Diverticulitis
- Sigmoid diverticulitis
- Salpingitis
- Tubo-ovarian abscess
- Rupured ectopic pregnancy
- Perforated colon
- Crohn’s dz
- Ulcerative colitis
- renal/ureteral stone
What are common LUQ ddx?
- Ruptured spleen
- Gastric ulcer
- Aortic aneurysm
- Perforated COlon
- Pyelonephritis
- Left pneumonia
What are common epigastric pain ddx?
- Myocardial infarct
- Peptic ulcer
- Acute Cholecystitis
- Perforated Esophagus
What are common ddx with a gradual onset?
1. Peritoneal inflammation or infection A. Appendicitis B. Diverticulitis C. Gastritis D. PID E. Chronic pancreatitis
How is a pt with acute abdominal pain assessed for stability?
1. Determine pt stability A. Ill or toxic appearing ? B. Responsiveness? C. GCS D. ABC’s? E. Vital signs? F. Extremity perfusion?
What is included in the abdominal exam in a pt with acute abdominal pain?
- Inspection
- Auscultation
- Percussion
A. Assess organomegaly, ascitis (fluid wave), obstruction, mass - Palpation
A. Rebound tenderness, board-like rigidity or guarding, pulsatile mass
What additional exams are required for a pt presenting with abdominal pain?
- DRE (if appropriate)
A. Guaiac - Genitalia/Pelvic exam (if appropriate)
A. Do not do a rectal exam on a cardiac pt or a shock pt
What does a positive Iliopsoas sign indicate?
Retrocecal appendicitis
What does a positive Rovsing’s sign indicate?
Inflammation, peritonitis
What does a positive Obturator sign indicate?
- inflammation involving the obturator nerve
A. Appy, diverticulitis, PID
What does a positive Murphy’s sign indicate?
cholecystitis
What are the ddx for severe abdominal pain?
- Renal colic
- Biliary colic
- Acute pancreatitis
- Acute gastritis/ulcer
- Perforated viscus
- Peritonitis
- Vascular pathologies
A. MI, mesenteric ischemia, AAA dissection
What are the common ddx for dull poorly localized pain?
- Suggests inflammatory process
A. Appendicitis
B. Diverticulitis
What are the common ddx for intermittent pain with cramps?
- Gastroenteritis
2. SBO
What ddx have pain that radiates to the back?
- Pancreatitis
- Peptic ulcer
- Gastritis
What ddx have pain that radiates to the shoulder?
- From ipsilateral diaphragmatic irritation by air, blood or infection in peritoneal cavity
A. Cholecystitis
B. Salpingitis/ ovarian pathology
What ddx presents with periumbilical and epigastric pain?
Gradually localizes to RLQ -> appendicitis
What ddx presents with Pain radiating to the flank and groin or genitalia?
- Ureteral colic
2. Testicular torsion
What asst. sxs may be present with acute abdominal pain?
- Anorexia
- N&V
- Fever & rigors
- Flank pain
- Constipation
- Diarrhea
What may fever and rigors asst with abdominal pain indicate?
- Suppurative cholangitis (pyogenic infection/obstruction)
A. RUQ pain, fever/chills, jaundice (Charcot’s Triad)
B. Surgical emergency
What may flank pain asst. with abdominal pain indicate?
- Pyelonephritis
2. Renal colic
What may constipation asst. with abdominal pain indicate?
Suggests intestinal obstruction, diverticulitis, appy or ileus
What may diarrhea asst with abdominal pain indicate?
Suggests gastroenteritis, colitis, (diverticulitis, appendicitis, SBO)
What dx studies are indicated for abdominal pain?
- CBC w/ diff
- Serum CMP
- Serum Lipase and Amylase
- UA w/ micro
- Urine or serum HCG
- EKG
- Bedside/stat USN
- KUB
- CXR
- CT
What may the CBC w/ diff show for abdominal pain?
- Hct ↑ in dehydration
- Hct ↓ in anemia or acute bleed
- WBC helpful if significantly elevated
A. “L shift” → bacterial infection
What may the Serum CMP show in abdominal pain?
1. Hepatic Function Tests A. Suspected hepatitis B. RUQ pain/tenderness C. Jaundice/light colored stools D. Tea colored urine 2. Serum Electrolytes/BUN/Cr A. Evaluate kidney function B. ↑ BUN -Dehydration -GI bleed
What may the UA w/ micro show for abdominal pain?
- UTI’s
- Kidney stones
- Uncontrolled DM
- Dehydration
a. ↑ SG
What may the urine or serum HCG show for abdominal pain?
- Obtain in all women of child bearing age unless pregnancy is physically impossible
A. TAHBSO
Who is at a higher risk for an ectopic pregnancy?
- Hx PID
- IUD
- Prior ectopic pregnancy
- Failed tubal ligation
What may an EKG show for abdominal pain?
Obtain in pt w/ epigastric or upper abd pain & unclear etiology
Why is a bedside/stat USN ordered for abdominal pain?
R/O free intra-peritoneal fluid (cul-de-sac), ectopic pregnancy, cholecystitis, hydronephrosis, pancreatitis, AAA, IUP, Ovarian cyst
Why is a KUB ordered for abdominal pain?
R/O calculus, SBO, colon obstruction, constipation
Why is a cxr ordered for ab pain?
R/O free air, pneumonia
Why is a CT ordered for ab pain?
R/O appy, tics, pancreatitis, mass, stones, ischemic bowel
What ab pain pts get surgery?
- Acute abdomen
A. Appendicitis, ruptured spleen, GI bleed, bowel perforation, intestinal obstruction, peritonitis, ectopic pregnancy, renal obstruction
B. Pulsatile abdominal mass
C. Shock w/ abd pain - If hypotensive or hemodynamically unstable w/abd pain
A. R/O life threatening pathology
B. STAT Surgical consult
How is life threatening abd pain managed?
1. Treat shock A. Oxygen @ rate 2-10 l/min by NC or mask -Keep SaO2 > 95% B. 2 large bore IV’s -Crystalloid sol’t (NS or LR) 2. Obtain labs: A. CBC w/ diff B. Serum CMP, lipase, lactate, HCG C. Fingerstick glucose D. Type & screen E. ABG’s 3. Foley catheter to monitor UO A. Obtain UA (UC if indicated) 4. Rapid IV infusion 5. NG TUbe if indicated 6. IV abx if indicated 7. Pelvic exam 8. DRE
What is the rapid IV infusion for life threatening abd pain?
- Titrate rate to stabilize BP
- Initially 1 liter bolus over 10-20 minutes (adult pts)
- Caution in pt w/ Hx of CHF
Persistent shock despite fluid resuscitation in pt w/ acute abd pain requires what?
Exploratory laparotomy
When is a nasogastric tube indicated?
- Intestinal obstruction
- Peritonitis
- Severe ileus
- GI bleed
When are abx indicated for life threatening abd pain?
- Suspected bacterial peritonitis or perforated viscus :
A. Broad spectrum IV abx after obtaining blood & urine cultures
What may be found on a pelvic exam w/ abd pain?
PID, ectopic pregnancy, ovarian cyst, ovarian cancer
What may be found on a DRE w/ abd pain?
- assess for presence/absence of blood in stool/rectum
(+) occult blood -> intestinal tumors, IBD, ischemic colitis, bleeding ulcers - Allows exam of prostate
A. Prostatitis, BPH, prostate nodules
What is the common hx for appendicitis?
- Classically, initial pain is poorly localized (visceral pain) in periumbilical region
- Later pain shifts to RLQ (somatic pain fibers)
- Anorexia, N/V, constipation, low grade fever may be present
What are common PE findings for appendicitis?
- Hypoactive or absent BS
- RLQ tenderness over McBurney’s point
A. Check iliopsoas , obturator, & Rovsing signs - Guarding, splinting
- (-) adnexal tenderness on pelvic exam
- Right sided tenderness on DRE
- No testicle tenderness /hernia
What dx studies are used for appendicitis?
- CBC
A. Leukocytosis w/ left shift - UA +/- WBC’s
- CT abd & pelvis w/ contrast -> Non-visualized appendix or perforated appendix
What is the treatment for appendicitis?
- STAT surgery consult, NPO, analgesia, IV fluids, IV antibiotics
What is the common hx for intestinal obstruction?
- Intermittent poorly localized crampy pain
- If pain constant & severe, consider possible perforation or bowel ischemia
- Bilious vomiting
What is the common pe findings for intestinal obstruction?
- Ill appearing, does not move
- Distended tender abd w/ high pitched bowel sounds
- Absent bowel sounds w/ ileus
- Tender throughout
- Mild-mod guarding
- (-) stool guaiac
What is the common dx studies for intestinal obstruction?
- KUB -> dilated loops of bowel w/ air fluid levels
2. CBC, CMP
What is the common Rx for intestinal obstruction?
NPO, +/- NG suction, IV crystalloids, surgery consult, close observation
What is the common hx for bowel perforation?
- Sudden onset severe agonizing mid-abd or lower abd pain
- N/V, fever
- Hx of diverticulitis is common
What is the common pe findings for bowel perforation?
- Toxic appearing
- Shock may be present
- Absent BS
- Rigid, tender abdomen
What is the common lab findings for bowel perforation?
- CBC, CMP, Blood & urine Cx (If shock -> ABG’s, serum lipase, serum lactate, type & screen)
- Leukocytosis w/ L shift
- KUB (or CXR) -> free air under diaphragm
What is the common Rx for bowel perforation?
- NPO, IV crystalloids, oxygen, foley cath, STAT general surgery consult, 2. IV abx after cultures obtained
What is the common hx for diverticulitis?
- Gradual onset lower abd pain
- Constipation or diarrhea
- +/- nausea
- +/- hematochezia
What is the common pe findings for diverticulitis?
- +/- low grade fever
- Softly distended
- Hypoactive BS
- Tenderness LLQ (most common), L mid abd or RLQ w/ guarding
- +/- palpable abd mass
- +/- (+) stool guaiac
What is the common labs for diverticulitis?
- UA
- CBC w/diff, +/- CMP
- CT Abd & pelvis w/contrast (IV or oral)
What is the common Rx for diverticulitis?
- NPO, IV crystalloids, IV abx (then oral), observation
- Can be treated as OP if no peritoneal signs
- F/U colonoscopy may be indicated
What is the common hx for gastroenteritis?
- Severe crampy abd pain that may have come on gradually or abruptly
- N/V/Diarrhea
What is the common pe findings for gastroenteritis?
- May be orthostatic if dehydrated
2. Generalized tenderness without guarding
What is the common dx studies for gastroenteritis?
- +/- CBC, BMP
- UA
A. ↑ SG indicates dehydration
What is the common Rx for gastroenteritis?
- Oral hydration (if tolerates po) or IV hydration
- +/- Antiemetic
- Severely ill should be hospitalized
What is the common hx for IBD?
- Intermittent abd cramping & intermittent bloody diarrhea
- Weight loss
- +/- fevers
What is the common pe findings for IBD?
Abd exam variable
What is the common dx studies for IBD?
- CBC, BMP, ESR, CRP
- UA
- CT Abd to assess for bowel perforation, obstruction, intraperitoneal abscess
What is the common Rx for IBD?
- If hypotensive or shock: Follow Shock Protocol
- NPO
- NG tube suction if vomiting
- Antiemetics
- Surgical consult if:
Significant hemorrhage, perforation, abscess, or toxic megacolon
What is hte Rx for an ambulatory IBD pt?
- Oral abx
- Steroids
- Sulfasalazine
What is the common hx for biliary colic?
- Abrupt onset of pain in upper abd (esp RUQ) after eating
- Usually resolves after several hours
- Referred pain to right scapula
What is the common pe findings for biliary colic?
- Afebrile
- RUQ tenderness & occasionally, palpable gall bladder
- (+) Murphy’s sign
What is the common dx studies for biliary colic?
- Abd USN -> gallstones, dilated GB or cystic duct
- OP HIDA scan if (-) USN
- +/- CBC, CMP if indicated
What is the common Rx for biliary colic?
Analgesics, Clear liquids-> fat free diet, elective surgery
What is the common hx for acute cholecystitis?
- RUQ pain
- Anorexia
- N/V
- Fever
What is the common pe results for acute cholecystitis?
- Low grade fever
- (+) Murphy’s sign
- May have palpable gall bladder
What is the common dx studies for for acute cholecystitis?
- CBC, CMP if indicated
- Abd USN
- Gallstones, dilated intra & extra hepatic bile ducts, thickened GB wall
What is the common Rx for for acute cholecystitis?
NPO, NG tube to suction for vomiting, IV crystalloids, parenteral analgesics, surgical consult
What is the common hx for ruptured AA?
- Severe abd pain of sudden onset that often radiates into low back
- Syncope usually related to blood loss & lack of cerebral perfusion
- Eventually leads to shock
What is the common pe findings for ruptured AA?
- Pulsatile abd mass
2. Unequal LE pulses
What are the common dx studies for ruptured AA?
STAT bedside abd USN
What is the common Rx for ruptured AA?
- CBC, Type & Cross match
- STAT vascular surgery consult
- Follow shock protocol
A. IV access
B. 2 large bore peripheral caths or central venous catheter
C. Treat shock w/ IV crystalloids followed by whole blood
D. Oxygen
E. Foley cath
What is the common hx for ischemic colitis?
- Abrupt onset of localized or diffuse crampy abd pain & diarrhea
- Ischemic areas may progress to gangrene if ischemia is severe
- Hematochezia
- Elderly
What is the common pe findings for ischemic colitis?
- Hyperactive to hypoactive BS as progresses
- Softly distended
- Mild to moderate tenderness to palpation over affected area
- (+) stool guaiac
What is the common dx studies for ischemic colitis?
- CBC, CMP variable
- CT abd w/ IV contrast
A. Colonoscopy - procedure of choice if CT inconclusive
What is the common Rx for ischemic colitis?
1. Supportive- A. NPO B. NG tube if ileus C. IV crystalloids D. Parenteral analgesia E. Oxygen 2. Bowel resection if symptoms increase
What is the common Hx for mesenteric ischemia?
- Sudden onset of severe, diffuse abd pain in mid or lower abdomen
- Pain is out of proportion to exam & not relieved by narcotics
- N/V/D
- Hematochezia
What is the common pe findings for mesenteric ischemia?
No focal findings initially -> then abd distention
What is the common dx studies for mesenteric ischemia?
- CBC: Leukocytosis
- CMP
A. Azotemia
B. Acidosis - CT angiogram
What is the common Rx for mesenteric ischemia?
Hospitalization & immediate surgical consult
What is the common Hx for renal colic?
- Sudden onset of severe flank pain, often radiates to groin
- Constant dull ache between episodes may be present
- N/V, restlessness (pacing floor)
What is the common pe findings for renal colic?
- Severe CVA tenderness
2. Remainder of exam typically unremarkable
What is the common dx studies for renal colic?
- UA -> RBC’s, WBC’s, crystals
- KUB may show calculi if radio-opaque
- Noncontrast CT abd
What is the common Rx for renal colic?
- Analgesia, tamsulosin (Flomax)
- ↑ fluids
- Strain urine
- F/U w/Urologist
- Small stones (5mm) may require urologic intervention
What is the common Hx for pyelonephritis?
- Flank pain, dysuria, frequency, urgency
- Fever, rigors
- N/V
What is the common pe findings for pyelonephritis?
- CVA tenderness
2. +/- abd tenderness
What is the common labs for pyelonephritis?
- UA
- Urine C&S
- Blood cultures
- CBC, BMP
What is the common Rx for pyelonephritis?
- OP (oral abx & hydration)
A. If tolerates po & reliable to return - IP (IV abx & IV hydration)
A. If severely ill, pregnant, very young, very old, immunocompromised, GU tract abnormality
What is the common Hx for acute pancreatitis?
- Acute onset of severe unrelenting epigastric pain radiating thru to back
- N/V
- Shock (severe cases)
- Predisposing conditions:
A. Alcoholism
B. Gallstones
What is the common pe findings for acute pancreatitis?
- Hypoactive or absent BS
2. Tender epigastrium w/guarding
What is the common labs for acute pancreatitis?
- WBC
- Amylase, Lipase
- CMP
- If Dx uncertain: CT abd
What is the common Rx for acute pancreatitis?
- IP -> NPO, NG tube if needed, aggressive crystalloid IVF, analgesia
- Chronic pancreatitis -> Treat OP if tolerating po & pain controlled w/ oral med
What are the risk factors for ectopic pregnancy?
- Ectopic pregnancy should be considered in all women of child bearing age who presents w/ abd pain
- Previous ectopic
- Hx STD’s
- Smoking
- IUD
What is the common Hx for ruptured ectopic pregnancy?
- Classic triad:
A. Abd pain, amennorhea, vaginal bleeding/spotting - Prior to rupture, pain is vague & poorly localized
- After rupture -> severe unilateral abd/pelvic pain
- N/V
- +/- Shoulder pain
- Postural hypotension -> shock
What is the common exam findings for ruptured ectopic pregnancy?
- Unilateral doughy mass in adnexal area
2. Tender cervical motion
What is the common dx studies for ruptured ectopic pregnancy?
Transvaginal U/S
What is the common Rx for ruptured ectopic pregnancy?
- Treat shock or hypotension w/ IV crystalloids & blood if necessary
- Emergent surgical intervention
What is the common Hx for acute salpingitis (PID)?
- Gradual onset of pelvic/lower abd pain
- Vaginal discharge/bleeding
- +/- N/V
- Fever
- Sexually active
What is the common exam findings for acute salpingitis (PID)?
- Normal BS
- Tender hypogastrium, may localize
- Cervical motion tenderness
- Adnexal tenderness or fullness (tubo-ovarian abscess)
What is the common dx studies for acute salpingitis (PID)?
- UA: +/- WBC’s, + RBC’s
- CBC: Leukocytosis w/L shift
- Urine or serum HCG
- GC/Chlamydia Cx, general Cx
- Pelvic sono -> Thickened fluid filled fallopian tubes, +/- fluid in cul-de-sac
A. R/O tubo-ovarian abscess
What is the common bacteria for acute salpingitis (PID)?
- N. gonorrhoeae
- Chlamydia trachomatis
- Mycoplasma
- Staphylococcus
- Streptococcus
What is the common Rx for acute salpingitis (PID)?
- Empiric antibiotics
A. OP
B. Ceftriaxone 250 mg IM/IV x 1 dose AND doxycycline 100 mg PO bid x 14 d
C. +/- metronidazole (Flagyl) 500 mg PO bid x 14 d
When should an acute salpingitis (PID) pt be hospitalized?
- Uncertain Dx
- Pregnancy
- Unable to tolerate po
- Failed OP treatment
- Pt unable to follow-up
What is the common hx for ovarian torsion?
- Sudden unilateral lower abd pain/pelvic pain of mod-severe intensity
- Worse w/ position change
- Pain may radiate to groin, back, flank
- N/V
- Hx ovarian cysts
What is the common exam findings for ovarian torsion?
Exquisite tenderness of affected adnexa
What is the common dx studies for ovarian torsion?
- (-) HCG
- D-Dimer (↑ > 70% of cases)
- Normal CBC
- Normal UA/UC
- Pelvic U/S w/ doppler
A. (-) doppler does not R/O torsion
B. MRI in highly suspicious case
What is the common Rx for ovarian torsion?
Admit for observation & laparoscopy to uncoil
What may be found on USN in ovarian torsion?
- Enlarged ovary
- Peripherally displaced ovarian follicles
- Free pelvic fluid > 80% of cases
- Whirlpool sign of twisted vascular pedicle
- Underlying ovarian lesion
- Uterus may be slightly deviated towards the torted ovary
What is the standard therapy for suspected bacterial peritonitis?
Cefotaxime 2 gm IV q8h x 5days
What abx is used for uncomplicated SBP?
Ofloxacin 400 mg PO bid x 8days
What is the abx of choice for nosocomial SBP?
Extended spectrum abx (carbapenems, Zosyn)
What is the abx of choice for a pt recieving fluorquinolones or bactrim SBP prohylaxis?
Cefotaxime 2 gm IV q8h x 5days
What is the abx of choice for a pt with SBP with a beta lactam hypersensitivity?
Ciprofloxacin 400 mg IV q12h
What is the abx of choice for a with SBP and advanced renal failure, creatinine >1mg/dl, BUN>30 or total bili >4?
IV cefotaxime 2 gm IV q8h x 5 days
IV albumin 1.5 g/kg given on day 1 and 1.0g/kg given on day 3