GI (Exam #1) Flashcards
What views are included on a 3-way view series, and what does each view evaluate for?
- Supine (KUB, plain film) = distended/dilated bowel
- Upright = air-fluid levels
- PA CXR = pneumoperitoneum
What condition involves dilated bowel proximal to obstruction, collapsed bowel distally? What will also be seen?
Small Bowel Obstruction
+ air fluid levels
What condition involves non-mechanical: dilated bowel, air present in both small bowel AND colon?
Ileus
Differentiate Small Bowel Obstruction from Ileus…
SBO = dilated proximally and collapsed distally
+ air fluid levels
Ileus = small bowel AND colon
- air fluid levels
What condition involves free air outside of bowel (air under both sides of diaphragm)?
Perforation
What is the initial diagnostic test for cholelithiasis and cholecystitis?
Abdominal US
What is the preferred diagnostic test for diverticulitis and pancreatitis?
CT Scan Abdomen/Pelvis
What diagnostic test should be ordered to evaluate for renal stone?
CT Abdomen/Pelvis WITHOUT contrast
What diagnostic test assesses bile excreting function?
HIDA Scan
What is an abnormal finding on HIDA Scan?
GB does NOT visualize due to cystic duct obstruction
- Patent = normal
If evaluating for Cholecystitis using HIDA Scan, what should also be included (2)?
CCK stimulation and ejection fraction
What diagnostic test can assess luminal GI tract disorders, and what two aspects of the tract are focused on?
Barium Studies
- Mucosa
- Peristalsis
What diagnostic test involves esophagus and gastroesophageal junction (GEJ) into proximal stomach?
Esophagram/Barium Swallow
What diagnostic test involves esophagus, stomach and first part of duodenum? When is this indicated?
UGI Series
- PUD (ulcer mound)
What two diagnostic tests have CI of suspected upper GI perforation?
- UGI Series
- Enema = Lower GI Series
If there is a suspected upper GI perforation, what should NOT be used and what is used in its place?
NO Barium
- Use water-soluble Gastrografin
What diagnostic test involves esophagus, stomach, duodenum, jejunum, ileum?
SBFT (UGI + Small Bowel Follow Through)
What diagnostic test involves colon and distal small bowel?
Enema = Lower GI Series
What diagnostic test may show an “apple core” lesion?
Enema = Lower GI Series
What diagnostic test is a scope of upper GI tract, and involves conscious sedation? What condition should be shown caution regarding the conscious sedation?
EGD (Esophagogastroduodenoscopy)
- Caution with conscious sedation if cardiopulmonary disease
What diagnostic test can be used to evaluate alarm symptoms, and what are these three sxs?
What other two conditions can be evaluated with this test?
EGD (Esophagogastroduodenoscopy)
- Dysphagia
- Weight loss
- Early satiety
Also, chronic GERD and hematemesis/melena
What diagnostic test can be used to evaluate for esophagitis (reflux, candida, HSV, eosinophilic)?
EGD (Esophagogastroduodenoscopy)
What diagnostic test can be used to evaluate for Barrett’s Esophagus; PUD; Celiac; CA?
EGD (Esophagogastroduodenoscopy)
What diagnostic test is considered invasive?
ERCP (Endoscopic Retrograde Cholangiopancreatography)
What is an important complication of ERCP (Endoscopic Retrograde Cholangiopancreatography)?
Pancreatitis
Differentiate ERCP (Endoscopic Retrograde Cholangiopancreatography) from MRCP (Magnetic Resonance Cholangiopancreatography) (2)?
- ERCP = invasive but diagnostic AND therapeutic
- MRCP = non-invasive but ONLY diagnostic
What diagnostic test is used to evaluate for assess for pancreatic/biliary conditions?
ERCP (Endoscopic Retrograde Cholangiopancreatography)
What diagnostic test is a scope of rectum, colon, and terminal ileum = entire colon?
Colonoscopy
What diagnostic test requires bowel prep?
Colonoscopy
What diagnostic test is the gold standard for colon CA screening? What are two other indications?
Colonoscopy
- Also used for IBD (UC) and Diverticulosis
What is an important CI of Colonoscopy, and why?
Active diverticulitis
- Risk for perforation
What diagnostic test involves rectum and sigmoid colon = distal colon ONLY?
Flexible Sigmoidoscopy
Differentiate Colonoscopy from Flexible Sigmoidoscopy…
- Colonoscopy = ENTIRE colon (rectum, colon, and terminal ileum)
- Flexible Sigmoidoscopy: distal colon ONLY
What condition is a common cause of GERD, and what subtype is most common?
Hiatal Hernia
- Sliding hernia = most common
What condition involves LES transiently relaxes → reflux of stomach contents = backflow?
GERD
What is the Montreal Classification, and what condition is it associated with?
GERD
- Reflux causes troublesome sxs/complications
What symptom is most commonly associated with GERD?
Heartburn/pyrosis (post-prandial)
What condition involves angina-like chest pain (R/O cardiac causes), dysphagia, hypersalivation, odynophagia?
GERD
What are the two ways by which medications increase GERD sxs, and what are three examples of each?
Decrease LES pressure:
- Anticholinergics
- TCAs
- CCBs
Injure mucosa:
- Bisphosphonates
- Iron supplements
- NSAIDs/ASA
How is GERD often diagnosed?
CLINICALLY
- If classic sxs and NO alarm features
What are the seven alarm sxs associated with GERD?
- Dysphagia
- Odynophagia
- IDA or GI bleed
- Unexplained weight loss
- New onset dyspepsia in patient 60+ years
- Prior anti-reflux surgery
- Hx of CA
What is the best diagnostic test to evaluate for mucosal injury in GERD?
What other three tests might be utilized?
EGD
Also…
- Esophageal Manometry
- Esophageal pH Monitoring
- Esophageal Impedance Testing
What diagnostic test is used to evaluate the function of LES and esophageal muscles (peristalsis) via pressure?
Esophageal Manometry
With mild or intermittent GERD sxs, what is the recommended treatment approach? What does this involve (3)?
STEP UP therapy
- Lifestyle modifications, H2 blockers +/- Antacids
With severe GERD sxs, what is the recommended treatment approach? What does this involve (2)?
STEP DOWN therapy
- Lifestyle modifications + PPI daily for 8 weeks
If severe esophagitis or Barrett’s are present, what type of treatment is necessary to avoid recurrent sxs or complications?
Maintenance PPI
What pharm treatment for GERD involves temporarily neutralize gastric pH? What is an example of this?
Antacids
- TUMS
What pharm treatment for GERD involves decreased secretion of stomach acid? What are two examples of this?
H2 Blockers/H2 Antagonists
- Ranitidine
- Zantac
What pharm treatment for GERD involves decreased production of stomach acid? What are three examples of this?
PPIs
- Prilosec
- Prevacid
- Nexium
When should PPIs be taken for the treatment of GERD (time of day)?
Take 30 minutes before 1st meal of day
What are two things you are at increased risk for with use of PPIs in the treatment of GERD?
- Infection (C. diff)
- Malabsorption (especially Magnesium)
If medications are indicated, what class should be tried first? If this does not work, what is often the second option? If this is then refractory, what are the next two options (hint: not necessarily meds…)?
- H2 Blocker
- PPI
- Make PPI BID and/or order an Endoscopy
What is the preferred method for anti-reflux surgery, and under what three conditions should surgery be considered?
Nissen
- Failed tx
- GERD complications
- Noncompliance
What condition involves columnar epithelium replaces squamous epithelium in distal esophagus?
Barrett’s Esophagus
With Barrett’s Esophagus, what epithelium is replaced, and by what?
Columnar epithelium replaces squamous epithelium
Patients with Barrett’s Esophagus are predisposed to what condition? How does this progress (5 steps)?
Adenocarcinoma
- GERD → Barrett’s Esophagus → Low Grade Dysphagia → High Grade Dysphagia → Adenocarcinoma
What diagnostic test should be utilized to monitor for evidence of dysplasia, and what condition are you ultimately trying to avoid progression to?
Adenocarcinoma
- Surveillance with EGD
What is the recommended treatment for Barrett’s Esophagus?
PPI indefinitely
- Can prevent CA
What two esophageal conditions are more common in white males? Which condition is more common in African American males?
- Barrett’s Esophagus
- Adenocarcinoma (Esophageal CA)
AA males = Squamous Cell Carcinoma (Esophageal CA)
What are the two subtypes of Esophageal CA, and which is increasing in incidence?
- Adenocarcinoma = increasing incidence
- Squamous Cell Carcinoma
What is the primary RF associated with Adenocarcinoma? What are the two primary RF associated with Squamous Cell Carcinoma?
- Adenocarcinoma = Barrett’s Esophagus
- Squamous Cell Carcinoma = smoking, alcohol
If a patient has dysphagia, what diagnostic test should be ordered?
Endoscopy
What is the most common cause of Esophagitis?
GERD (reflux esophagitis)
What are the four etiologies of Esophagitis?
- Infectious
- Medication-induced
- Eosinophilic
- Radiation
What specific symptom is associated with Eosinophilic Esophagitis?
Dysphagia
What esophageal condition has a strong connection with other allergic diseases, and what are four examples of these allergic diseases?
Eosinophilic Esophagitis
- Asthma
- Rhinitis
- Food allergies
- Chronic eczema
What are the three recommended treatments for Eosinophilic Esophagitis?
- Diet (avoid allergens)
- PPIs
- ICS (spray and swallow, NOT inhaled)
What three symptoms should prompt consideration of an Esophageal Motility Disorder?
- Dysphagia
- Noncardiac CP
- Refractory GERD sxs
What two medications are recommended for treatment of Hypercontractile (Jackhammer) Esophagus
and Distal Esophageal Spasm (DES) (__ + __ or __)?
- PPI
AND - CCB (Diltiazem) or TCA (Imipramine)
What two symptoms often present with Hypercontractile (Jackhammer) Esophagus
and Distal Esophageal Spasm (DES)?
- Dysphagia
- CP
What two symptoms are often present with Achalasia?
- Dysphagia
- Regurgitation
What diagnostic test is REQUIRED for Achalasia, and what does this show? What other test may be used, and what is seen with this?
Esophageal Manometry = required
- Shows aperistalsis (NO contraction)
Can also use barium swallow - Shows “bird’s beak”
What condition presents with aperistalsis and “bird’s beak” diagnostically?
Achalasia
What two conditions presents with high pressure contractions (with normal relaxation at junction) diagnostically, and what diagnostic test is used for this?
Esophageal Manometry
- Hypercontractile (Jackhammer) Esophagus
- Distal Esophageal Spasm (DES)
With Achalasia, what diagnostic test is NECESSARY to R/O malignancy?
EGD
What is the preferred treatment for Achalasia? What other three biochemical reduction in LES pressure can be tried?
SURGERY = mechanical (pneumatic dilation vs. Heller myotomy)
- Can also try Botulinum toxin, Nitrates or CCBs
What condition presents with retching, repetitive vomiting (hematemesis)?
Mallory Weiss Syndrome
What condition involves mucosal laceration in distal esophagus and proximal stomach?
Mallory Weiss Syndrome
What two symptoms present with Mallory Weiss Syndrome?
- Retching
- Repetitive vomiting (hematemesis)
What are two important RFs associated with Mallory Weiss Syndrome?
- Heavy alcohol use
- Hiatal hernia
What condition involves esophageal rupture similar to MWS but does NOT improve with time?
Boerhaave’s Syndrome
What condition involves progressive inflammation and degeneration of neurons → LES fails to relax?
Achalasia
What are the three primary functions of Macronutrients?
- Provide energy
- Promote muscle growth/repair
- Support cell function
What are the five primary functions of Micronutrients?
- Cell metabolism
- Biochemical reaction
- Hormone function
- Nerve impulse propagation
- Muscle function
What are the three Macronutrients, and which is the primary fuel source? What is the primary digestive enzyme for each?
- Carbs = primary fuel source: amylase
- Proteins: protease
- Fats: lipase
What are the three important fat-soluble vitamins and what is an important aspect of each? What is the fourth fat-soluble vitamin?
- Vitamin A = vision
- Vitamin D = calcium absorption
- Vitamin K = clotting
Also, Vitamin E
Which vitamin is associated with vision, and is this fat or water soluble?
Vitamin A
- FAT-soluble
Which vitamin is associated with calcium absorption, and is this fat or water soluble?
Vitamin D
- FAT-soluble
Which vitamin is associated with clotting, and is this fat or water soluble?
Vitamin K
- FAT-soluble
Which vitamin binds to IF, and is this fat or water soluble?
Cyanocobalamin/B12
- WATER-soluble
Which vitamin aids in iron absorption, and is this fat or water soluble?
Ascorbic Acid/Vitamin C
- WATER-soluble
What two conditions are associated with Thiamine/B1 deficiency?
- Beriberi (peripheral neuropathy, edema)
- Wernicke-Korsakoff Syndrome (neuro sequela)
Which vitamin deficiency is associated with Beriberi (peripheral neuropathy, edema) and Wernicke-Korsakoff Syndrome (neuro sequela)?
Thiamine/B1 deficiency
What three symptoms are associated with Riboflavin/B2, Niacin/B3 and Pyridoxine/B6 deficiencies?
- Cheilitis
- Angular stomatitis
- Glossitis
Which three vitamin deficiencies are associated with cheilitis, angular stomatitis, glossitis?
- Riboflavin/B2
- Niacin/B3
- Pyridoxine/B6
What condition is associated with Niacin/B3 deficiency? What are the three symptoms associated with this disorder?
Pellagra
- Diarrhea
- Dermatitis
- Dementia
What two conditions are associated with Cyanocobalamin/B12 deficiency?
- Peripheral neuropathy
- Macrocytic anemia
What primary condition is associated with Vitamin A deficiency?
Night blindness
Which vitamin deficiency is associated with night blindness, bitot’s spots, poor wound healing, dry skin?
Vitamin A deficiency
Which mineral deficiency is associated with confusion, hypotension, tachycardia?
Sodium deficiency
What three symptoms are associated with Sodium deficiency?
- Confusion
- Hypotension
- Tachycardia
Which mineral deficiency is associated with taste disturbance, poor wound healing?
Zinc deficiency
What primary symptom is associated with Zinc deficiency?
Taste disturbance
What two symptoms are associated with Calcium deficiency?
- Tetany
- Fractures
Which mineral deficiency is associated with fractures, tetany?
Calcium deficiency
What three symptoms are associated with Potassium deficiency?
- Muscle cramping
- Fatigue
- U waves on EKG
Which mineral deficiency is associated with muscle cramping, fatigue, U waves on EKG?
Potassium deficiency
What five symptoms are associated with Iron deficiency?
- Fatigue
- Pallor
- Pale conjunctiva
- Pica
- Koilonychia
Which mineral deficiency is associated with fatigue, pallor, pale conjunctiva, pica, koilonychia?
Iron deficiency
What four symptoms are associated with Vitamin C AND Vitamin K deficiencies?
- Bleeding gums
- Easy bruising
- Poor wound healing
- Petechiae/purpura
Which two mineral deficiencies are associated with bleeding gums, easy bruising, poor wound healing, petechiae/purpura?
- Vitamin C deficiency
- Vitamin K deficiency
Which mineral deficiency is associated with sensory and motor neuropathy?
Vitamin E
Which mineral deficiency is associated with tooth decay?
Fluoride
Which vitamin toxicity is associated with flushing?
Niacin/B3
What symptom is associated with Niacin/B3 toxicity?
Flushing
Which mineral toxicity is associated with edema?
Sodium