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WorksheetsGI Lab Practice
Total questions: 10
Worksheet time: 5mins
A 57 year old man presents to the emergency department with a two day history of fever and abdominal pain. He has a past medical history of hypertension. On examination he appears jaundiced and has a tender right upper quadrant. His temperature is 38.5oC, heart rate 101 bpm and blood pressure 110/80 mmHg.
What labs would be useful to determine the etiology of his complaint?
CBC, BMP, CRP
CBC, CMP, lipase, CRP
CBC, BMP
CBC, CMP, amylase, CRP
The physician orders a patient with a duodenal ulcer to take a UREA breath test. Which lab value will the test measure to determine if H. pylori is present?
urea
carbon dioxide
ammonia
hydrochloric acid
If patient has noted decrease of pepsinogen I with normal pepsinogen II, what diagnosis would be on your differential?
peptic ulcer disease
pernicious anemia
Zollinger-Ellison syndrome
gastritis
Which of the following are appropriate for initial H. pylori testing in an individual that is not undergoing an endoscopy?
serum IgM
serum IgG
urea breath test
stool test
Which of the following medications need to be stopped prior to testing for H. pylori?
H2 agonist
proton pump inhibitor
antibiotics
calcium carbonate (TUMS)
If a patient has an elevated ALP which of the following would be an appropriate study to obtain to determine if elevation is bone vs liver etiology?
amylase
gastrin
pepsinogen II
leucine aminopeptidase (LAP)
Patient is a known alcohol abuser that presents with altered mental status. Labs show bilirubin 5mg/dL, AST 60U/L, and low albumin 1.5g/dL. What would you expect ammonia level to be?
20 mcg/dL
5 mcg/dL
50 mcg/dL
150 mcg/dL
Which of the following lab is preferred to diagnose acute pancreatitis?
lipase
amylase
BMP
CBC
A patient presents with profuse, smelly diarrhea for the last 3 days after completing a course of clindamycin for persistent bronchitis. Patient requires admission to the hospital for correction of hydration status. Which of the following labs can be quickest and diagnostic for the etiology of the diarrhea?
stool culture
ova and parasite
c. diff
stool leukocytes
A patient is using a guaiac-based FOBT (g-FOBT) and reports eating large amounts of red meat and raw broccoli for several days before and during sample collection. The collected sample was noted positive. Which of the following is the correct interpretation?
potential false positive, needs retesting after sustaining from specific foods
false-positive result, no further followup
positive, schedule for colonoscopy
positive, obtain additional labs (CBC, iron studies)
