(Single Best Answer) Question 171: A 70-year-old male has a pathologic fracture of femur. The lesion appears lytic on X-ray film with a circumscribed punched out appearance. The curetting from fracture site is most likely to show which of the following ?
A) Diminished and thinned trabecular bone fragments secondary to osteopenia B) Sheets of atypical plasma cells C) Metastatic prostatic adenocarcinoma D) Malignant cells forming osteoid bone Answer (Select an option above to get the answer):
(Single Best Answer) Question 172: A case of carcinoma larynx with the involvement of anterior commissure and right vocal cord, developed perichondritis of thyroid cartilage. Which of the following statements is true for the management of this case ?
A) He should be given radical radiotherapy as this can be cure early tumours B) He should be treated with combination of chemotherapy & radiotherapy C) He shold first receive radiotherapy and if residuan tumour is present the should under go laryngectomy D) He should first undergo laryngectomy and then post-operative radiotherapy Answer (Select an option above to get the answer):
(Single Best Answer) Question 173: A couple has two children affected with tuberous sclerosis. On detailed clinical and laboratory evalution (including molecular studies) both parents are normal. Which one of the following explains the two affected children in this family ?
A) Non penetrance B) Uniparental diasomy C) Genomic imprinting D) Germline mosaicism Answer (Select an option above to get the answer):
(Single Best Answer) Question 174: A dead body is having cadaveric lividity of bluish green colour. The most likely cause of death is by poisoning due to ?
A) Hydrocyanic acid B) Hydrogen sulphide C) Oleander D) Sodium nitrite Answer (Select an option above to get the answer):
(Single Best Answer) Question 175: A diagnostic test for a particular disease has a sensitivity of 0.90 and a specificity of 0.80. A single test is applied to each subject in the population in which the diseased population is 30%. What is the probability that a person, negative to this test, has no disease ?
A) Less than 50% B) 70% C) 95% D) 72% Answer (Select an option above to get the answer):
(Single Best Answer) Question 176: A patient admitted to an ICU is on central venous line for the last one week. He is on ceftazidime and amikacin. After 7 days of antibiotics he develops a spike of fever and his blood culture is positive for gram positive cocci in chains, which are catalase negative. Following this, vancomycin was started but the culture remained positive for the same organism even after 2 weeks of therapy. The most likely organism causing infection is ?
A) Staphylococcus aureus B) Viridan streptococci C) Enterococcus faecalis D) Coagulase negative Staphylococcus Answer (Select an option above to get the answer):
(Single Best Answer) Question 177: A nucleic acid was analyzed and found to contain 32% adenine, 18% guanine, 17% cytosine and 33% thymine. The nucleic acid must be ?
A) Single-stranded RNA B) Single-stranded DNA C) Double-stranded RNA D) Double-stranded DNA Answer (Select an option above to get the answer):
A) Maxillary processes B) Medial nasal processes C) Medial and lateral nasal process D) Medial nasal and maxillary process Answer (Select an option above to get the answer):
(Single Best Answer) Question 179: A middle aged person reported to Psychiatric OPD with complains of fear of leaving home, fear of traveling alone and fear of being in a crowd. He develops marked anxiety with palpitations and swelling if he is in these situations. He often avoids public transport to go his place of work. The most likely diagnosis is ?
A) Generalised anxiety disorder B) Schizophrenia C) Personality disorder D) Agoraphobia Answer (Select an option above to get the answer):
(Single Best Answer) Question 180: A housewife ingests a rodenticide white powder accidentally. She is brought to hospital where the examination shows generalized, flaccid paralysis and an irregular pulse. ECG shows multiple ventricular ectopics, generalized changes with ST-T. Serum potassium is 2.5 mEq/L. The most likely ingested poison is ?
A) Barium carbonate B) Superwarfarins C) Zinc phosphide D) Aluminium phosphide Answer (Select an option above to get the answer):