Salmonella bacteria
Question Number 1155 Question: Salmonella bacteria are more resistant than Streptococci to penicillin G. Which of the following factors is most closely associated with this difference ? a) cytoplasmic membrane b) cytoplasm c) plasmids d) peptidoglycan e) outer membrane ~*~ Originally posted 2011-12-28 15:05:00. Republished by Medical OSCES
Categories: Microbiology Tags:
Answer :USMLE step 2 Mcq 224:A 47 year old male with a 25 year history of chronic hepatitis B infection begins to notice weakens and an unexplained weight loss
Correct Answer: E Explanation: Hepatocellular carcinoma is associated with long-standing liver disease, including hepatitis B. Hepatocellular carcinoma can present with weakness and weight loss. On physical examination, there can be liver tenderness, and a a palpable mass. A friction rub is heard when the surface of the liver is involved. Alpha fetoprotein is a tumor marker that is elevated in a significant number of primary liver cancers. Hepatocellular carcinoma can have metastasis, typically to regional lymph nodes and the diaphragm. Primary biliary cirrhosis tends to occur in women age 40-60. It would not present with a liver mass [...]
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26 year old male has acute left loin pain radiating to the left groin.
Question Number 0461 Question: 26 year old male has acute left loin pain radiating to the left groin. Urinalysis reveals puria. He undergoes an intravenous urogram which reveals collections of contrast medium in dilated papillary collecting ducts of both the right and left kidneys. Both kidneys are enlarged. The most likely diagnosis is a) dilatation of the ureter b) horse-shoe kidney c) medullary sponge kidney d) renal tuberculosis e) renal papillary necrosis Originally posted 2011-07-19 16:14:00. Republished by Medical OSCES
Categories: MRCP Part 1 MCQ, USMLE 01 Tags:
MCQS 525-527:A patient with known Crohn’s disease develops an entero-cutaneous fistula and surgery is being contemplated
Question:525 Correct Answer: H Explanation: The small bowel enema permits assessment of the mucosal surface, even in the presence of overlapping small bowel loops. The technique allows detection of small, relatively subtle lesions. The radiologist is able to evaluate fold thickness and height and distance between folds. A small bowel enema is the optimal radiographic procedure for demonstrating the distribution of small intestinal disease, particularly more proximal skip lesions, strictures and fistulas. It is the procedure of choice when the diagnosis of Crohn’s disease needs to be differentiated from other pathologic conditions of the small bowel, such as ischemia, lymphoma, [...]
Categories: PLAB MCQ Tags:
Gardner’s syndrome and Cowden’s syndrome are both high risk factors for carcinoma of the
![image_thumb[1] 330](http://www.medisl.com/wp-content/uploads/2012/10/image_thumb1-330.png)
Question Number 0330 Question: Gardner’s syndrome and Cowden’s syndrome are both high risk factors for carcinoma of the a) pancreas b) thyroid gland c) Meibomian glands d) adrenal cortex e) adrenal medulla ~*~ Originally posted 2011-06-16 17:26:00. Republished by Medical OSCES
Categories: MRCP Part 1 MCQ, USMLE 01 Tags:
Answer :USMLE step 2 Mcq 185:A 30 year old single woman with a low IQ presents at her gynaecologist because she is worried she may be pregnant
Correct Answer: D Explanation: Ovarian failure maybe result from successful treatment of cancers (such as Hodgkin’s disease) with radiation or chemotherapy. The younger the woman, the better the chance for return of ovarian function after chemotherapy. Radiation effects are dependent on exposure. Generally, a total of 800 rad will lead to permanent infertility Originally posted 2010-12-07 01:00:00. Republished by Medical OSCES
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