A 34-year-old woman with a history of alcoholism and self-neglect, presents with an episode of blood streaked vomiting attributed to minor Mallory-Weiss tear. She is given an intravenous infusion of 5% dextrose. The following day, her serum potassium concentrations fall to1.9 mEq/L on admission. What is the likely mechanism for the fall in potassium concentration?
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A 69 year old woman comes for flexible sigmoidoscopy as part of a yearly screening. A 3 cm polyp is found in the sigmoid colon and is removed. She returned 6 hours later complaining of left lower quadrant pain, fever, nausea and vomiting. Vital signs are: temperature 38.1°C (100.6°F), pulse 110/min respirations 26/min and blood pressure 120/60 mm Hg. Abdominal examination discloses bowel sounds, tenderness and guarding in the left lower quadrant. Rectal examination shows no stool and only tenderness superiorly. What is the most appropriate next step?
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A 50 year old man comes to the emergency room with a history of vomiting for three days. His past history reveals that for approximately 20 years, he has been getting relief from epigastric pain, lasting for 2 to 3 weeks. He remembers getting pain relief by taking milk and antacids. Physical examination showed fullness in the epigastric area with visible peristalsis, absence of tenderness and normal active bowel sounds. The most likely diagnosis in this patient is
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A 55 year old alcoholic man is brought in to the emergency department after being found unconscious by his daughter who called the paramedics. Paramedics report finding the man in a stuporous condition in the bathtub, covered with vomit. On arrival at the emergency department, the man is clammy and his blood pressure is 85/50 mm Hg. The most likely cause of his hypotension is
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A 48 year old male presents to the emergency room with sudden onset of severe upper abdominal pain with vomiting. The pain is located in the epigastrium with radiation to the back. History of chronic epigastric pain is not present. The most commonly encountered predisposing factors for this patient´s condition is
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Correct statement regarding the development of appendicitis in pregnancy is
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A 55-year-old had two episodes of bright red hematemesis a month ago. No alcohol, medication, prolonged abdominal pain, or retching history exists except for long-standing heartburn. Melena was present. What is the etiology of bleeding?
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Upper endoscopy and biopsy of a 45 year old man with subacute epigastric pain, weight loss, and early satiety shows helicobacter pylori infection and gastric carcinoma. FALSE statement regarding H. pylori and gastric cancer is
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A 37 year old male has a three day history of bloody diarrhea. He was apyrexial and mildly icteric. His Hb is 10.5 g/dL, WBC count is 19 x109/L, platelet count is 70 x109/L, serum urea is 12.5 mmol/L (2.5-7.5), Serum AST is 90 U/L (1-31) and PT is 12s (11.5-15.5). Peripheral film shows fragmented red cells. The most likely cause of his illness is which one of the following?
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A male aged 32 years develops profuse diarrhoea with mucus and blood. Biopsies from the flexible sigmoidoscopy show evidence of ulcerative colitis. True statement regarding this condition is which one of the following?
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A 60 year old female comes to the office because of pain in the left lower quadrant of her abdomen for the past 48 hours. The pain is associated with tenesmus, loss of appetite and a sensation of being febrile. History of irritable bowel symptoms is present but she has not taken any medications for it. Vital signs are: temperature 37.3C (99.2F), Pulse 84/min and regular and respirations 12/min. On physical examination the abdomen is tender in the left lower quadrant. No rebound tenderness is present and bowel sounds are normal. Leukocyte count is 10,200 with 71% segmented neutrophils and 3% band forms. The patient is prescribed tetracycline therapy and is asked to take liquid diet. Three days later she returns because of the worsening of the pain, associated with chills. What is the most appropriate next step?
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A 36 year old man returns for follow of an abnormal liver chemistry profile ordered 3 weeks ago during a routine examination. At that time, his physical examination was normal, but he had a serum AST concentration of 72 U/L. His Serum bilirubin and alkaline phosphatase concentrations were normal. History includes an episode of hepatitis A at age 22 years. He has no history of transfusions or intravenous drug use. He drinks two to three beers daily. Today´s follow-up test results show:
Anti-HAV Positive
Anti-HBs Negative
HBsAg Positive
HBeAg Positive
The most appropriate next step in management is
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In case of which one of the following should the small bowel obstruction be managed with prompt surgical decompression?
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A 16 year old boy has been taken to the emergency department three times for acute abdominal pain, but was released each time without a definitive diagnosis. The frustrated emergency department physicians now consider him to be "crazy" and have labeled him as having "irritable bowel syndrome." On the fourth occasion, as part of the workup a urinalysis is performed, the results of which are shown below:
Color: |
yellow-brown |
Specific gravity: |
1.0025 |
WBC: |
25 |
RBC: |
0 |
Microscopic: gram-negative rods, mixed flora
The most appropriate diagnosis is
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An elderly nursing home resident woman is brought to the emergency room in shock. The nursing home staff is upset about her condition and stresses that the patient was completely well yesterday, and had only complained of "feeling a little ill" several hours before being brought in. Physical examination reveals a tense abdomen with guarding. This patient´s condition is most likely caused by which one of the following?
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A 25-year-old woman pregnant lady with a long history of ulcerative colitis takes mesalazine. She also smokes 15 cigarettes daily. She now presents with a deterioration of symptoms with six bloody stools per day. Which of the following statements is correct?
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A 48 year old male has confusion and drowsiness. A diagnosis of hepatic encephalopathy is suspected and treatment with lactulose is begun. True statement regarding lactulose is which one of the following?
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A 23 year old man presents 1 week after returning from a 6 month visit to Pakistan. He has fever, rigors and headache. On exam he is febrile (38°C) with BP of 115/65 mmHg, and pulse of 100/min. His abdomen is tender in the right upper quadrant. Hb is 11.0 g/dL, WBC count is 15.5 x109/L with neutrophils 13.5 x109/L and platelet count is 350 x109/L. Blood film is negative for malarial parasites. ALP, AST and CRP are elevated. CXR shows small right pleural effusion. Which investigation would be of diagnostic value?
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A 43 year old man has intermittent episodes of severe, crushing chest pain that extends to the back and the jaw and last from a few seconds to several minutes. Many times the pain is accompanied by dysphagia and triggered by the ingestion of certain foods. ECG and cardiac enzymes have been negative. Barium swallow shows disorganized peristaltic contractions. Manometry shows that approximately one half of wet swallows produce repetitive simultaneous esophageal sphincter has normal pressures and exhibits normal relaxation. The most likely diagnosis is
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A 70-year-old man has colon cancer. Abdominal CT scan shows no metastases. Only there is significant intramural calcification of gallbladder. The calcified walls are thickened and no pericholecystic fluid present. No abdominal pain exists. What in addition to resection of the colon cancer, should be done?
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A 66-year-old man has chronic secretory diarrhea and episodes of flushing for the last few months. He also reports 10 to 12 foul-smelling stools in a day. Stool cultures and a stool test are negative. During flushing, he appears dyspneic with wheezing. What now is the most appropriate test to confirm the diagnosis?
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A 54 year old white male smoker suffered from gastroesophageal reflux symptoms unrelieved by intensive medical therapy with PPI. A recent biopsy performed during upper endoscopy identified Barrett´s esophagus. Which one of the following is true about this condition?
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Total parenteral nutrition is appropriate for patients
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A 22 year old college student presents with intermittent chest pain for about 6 months. He states that the pain can occur at any time, but often occurs late in the day. The pain can be sharp, dull, or aching and may last for hours. He is physically active and is carrying a full academic load. The pain is not related to exercise and does not restrict his activities. His father and paternal uncle had myocardial infarctions within the past year. Physical examination is normal, although the patient appears restless and has a heart rate of 100/min. The most likely diagnosis is
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A 60 year female with numbness in the lower extremities and macrocytosis has a normal serum folate level and a serum B12 level of 200pg/mL (N 150-800). The laboratory finding that would confirm the diagnosis of B12 deficiency is
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FALSE associations regarding the Zollinger Ellison syndrome is which one of the following?
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A 60 year old male has left leg pain and weight loss. On exam, unilateral erythema, swelling, and warmth are noted over the left leg. On ultrasound day his left leg is no longer painful but his right leg is swollen. Ultrasound shows a deep venous thrombosis in the right leg, but no clot in the left leg. What underlying condition is the likely cause of his presentation?
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A 35 year old letter carrier has ulcerative esophagitis and has lost 30 lb in 3 months. He is emaciated and appears ill. Pulse is 98 beats/min, temperature 37.8°C, respiratory rate 24/min, and blood pressure 95/60mmHg. His dentition is poor, and there is evidence of oral thrush. Some posterior cervical and axillary nodes are palpable. The heart, lung, and abdominal examinations are normal. As you continue to investigate, you take a more detailed history. The finding that is most likely to be related to the patient´s problem is
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A 62 year old man is seen in the emergency room and is diagnosed as having acute pancreatitis. Which one of the following would suggest more severe illness?
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A 36 year old man returns for follow of an abnormal liver chemistry profile ordered 3 weeks ago during a routine examination. At that time, his physical examination was normal, but he had a serum AST concentration of 72 U/L. His Serum bilirubin and alkaline phosphatase concentrations were normal. History includes an episode of hepatitis A at age 22 years. He has no history of transfusions or intravenous drug use. He drinks two to three beers daily. Today´s follow-up test results show:
Anti-HAV Positive
Anti-HBs Negative
HBsAg Positive
HBeAg Positive
The most appropriate next step in management is
Hint
A 32 year old man with a 15 year history of ulcerative colitis develops intermittent cholestatic jaundice. Ultrasonographic examination fails to reveal gallstones. Liver biopsy demonstrates a large bile duct obstruction. Endoscopic retrograde cholangiopancreatography (ERCP) would show
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A 37 year old woman experiences a greasy, malodorous diarrhea. She works in a daycare and has recently gone camping in western Pennsylvania. Stool cultures are performed that were heme and leukocyte negative. Diagnostic feature of giardiasis would be which one of the following?
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A 54 year old male on no current treatment for his quiescent ulcerative colitis is found to have an ESR of 95mm/hr. His Hb is 13.2/dL, WBC count is 4.5 x109/L, Platelet count is 160 x109/L, corrected calcium is 2.58mmol/L, IgG is 25g/L (6-13), IgA is 1.8g/L (0.8-3.0) and IgM is 1.6g/L (0.4-2.2). The most appropriate next investigation is which one of the following?
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A 25 year old woman had ulcerative colitis (UC) for seven years and was prescribed mesalazine 1.5 g per day. She smoked 20 cigarettes per day and was 10 weeks pregnant. She has worsening of symptoms with six bloody stools per day. Which statement is correct?
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