1.
BRCA gene located in?
Correct Answer
C. Chromosome 17
Explanation
The BRCA gene is located on Chromosome 17. This gene is responsible for producing proteins that help suppress the growth of tumors and repair damaged DNA. Mutations in the BRCA gene can increase the risk of developing breast, ovarian, and other types of cancer. Therefore, it is important to understand the location of this gene in order to study and diagnose genetic disorders related to it.
2.
Medullary carcinoma thyroid is treated by?
Correct Answer
A. Surgery only
Explanation
Medullary carcinoma of the thyroid is a rare type of thyroid cancer that originates from the C cells of the thyroid gland. It is typically treated by surgery only. The primary treatment for medullary carcinoma thyroid is the complete removal of the thyroid gland through surgery, known as a total thyroidectomy. This is because the cancer cells tend to spread to nearby lymph nodes and other parts of the body, making surgical removal crucial for effective treatment. Radiotherapy and chemotherapy may be used as additional treatments in some cases, but the mainstay of treatment for medullary carcinoma thyroid is surgery.
3.
CNS infection spreads in the inner ear through?
Correct Answer
B. Cochlear aqueduct
Explanation
The cochlear aqueduct is a small canal that connects the inner ear to the subarachnoid space, which is the space surrounding the brain and spinal cord. This canal allows for the passage of cerebrospinal fluid (CSF) between the inner ear and the subarachnoid space. In the case of a CNS infection, the infection can spread through the CSF in the cochlear aqueduct and reach the inner ear. Therefore, the correct answer is the cochlear aqueduct.
4.
Not a complication of tracheostomy?
Correct Answer
B. Subglottic stenosis
Explanation
Subglottic stenosis is not a complication of tracheostomy. Tracheostomy is a surgical procedure in which an opening is created in the neck to provide an alternate airway. Complications of tracheostomy can include infection, bleeding, damage to nearby structures, and pneumothorax. However, subglottic stenosis, which is the narrowing of the airway below the vocal cords, is not directly related to tracheostomy. It can be caused by various factors such as prolonged intubation or inflammation, but it is not a direct complication of the tracheostomy procedure itself.
5.
Use of Fogarty's catheter?
Correct Answer
A. Removal of blood clot from arteries
Explanation
Fogarty's catheter is commonly used for the removal of blood clots from arteries. This catheter has a balloon-like tip that can be inflated to trap the clot and then withdrawn, effectively removing the clot from the artery. It is a minimally invasive procedure that helps restore blood flow and prevent complications associated with clot obstruction.
6.
Raccoon eye seen in?
Correct Answer
C. Anterior cranial fossa fracture
Explanation
Raccoon eye refers to the appearance of bruising or discoloration around the eyes. This condition is commonly seen in cases of anterior cranial fossa fracture, which is a type of skull fracture that occurs in the front part of the skull. When the skull is fractured in this area, blood can accumulate around the eyes, causing the characteristic raccoon eye appearance. Cranial vault hemorrhage and subgaleal hemorrhage may also cause bruising, but they are not specifically associated with the raccoon eye presentation. Therefore, the correct answer is anterior cranial fossa fracture.
7.
Not removed in radical neck dissection?
Correct Answer
D. pHrenic nerve
Explanation
The phrenic nerve is not removed in radical neck dissection because it is not located in the neck. The phrenic nerve originates from the cervical spine and runs down through the thorax to innervate the diaphragm, which is responsible for breathing. Radical neck dissection involves the removal of lymph nodes and surrounding structures in the neck, but it does not involve the phrenic nerve as it is not within the scope of the procedure.
8.
Barret esophagus shows?
Correct Answer
B. Intestinal metaplasia
Explanation
Barret esophagus is a condition where the normal squamous epithelium lining of the esophagus is replaced by columnar epithelium. This columnar epithelium is a type of metaplasia called intestinal metaplasia, which resembles the lining of the intestines. Therefore, the correct answer is intestinal metaplasia.
9.
True about Hashimoto's thyroiditis all except?
Correct Answer
B. OrpHan anie eye nuclei
Explanation
Hashimoto's thyroiditis is an autoimmune disorder that causes inflammation and destruction of the thyroid gland. It is characterized by the presence of lymphocytic infiltration, lymphocytosis, and destruction of follicles. Orphan anie eye nuclei is not a characteristic feature of Hashimoto's thyroiditis. This term is not recognized in medical literature and therefore cannot be considered a true finding in this condition.
10.
Hirschsprung disease occurs due to?
Correct Answer
C. Neural crest cells fail to migrate from cranial to caudal
Explanation
Hirschsprung disease occurs when neural crest cells, which are responsible for the migration and development of nerve cells in the intestines, fail to migrate from the cranial (head) to the caudal (tail) end of the intestines during fetal development. This results in a lack of nerve cells in certain parts of the intestines, leading to a blockage and impaired movement of stool. Paralytic ileus and brain tumor are not related to the development of Hirschsprung disease.
11.
Full-thickness graft not obtained from
Correct Answer
A. Axilla
Explanation
Full-thickness graft is a type of skin graft that includes the epidermis and the entire dermis. The axilla, which is the armpit area, is not a suitable donor site for obtaining a full-thickness graft due to the presence of sweat glands and hair follicles. In contrast, the elbow, groin, and supraclavicular area are commonly used as donor sites for full-thickness grafts because they provide a sufficient amount of healthy skin that can be harvested for grafting purposes.
12.
Skip lesions are seen in?
Correct Answer
A. Chrons disease
Explanation
Skip lesions are a characteristic feature of Crohn's disease. Crohn's disease is a chronic inflammatory bowel disease that can affect any part of the gastrointestinal tract, from the mouth to the anus. Skip lesions refer to areas of inflammation that are separated by normal or unaffected segments of the intestine. This pattern of involvement is unique to Crohn's disease and helps to distinguish it from other inflammatory bowel diseases like ulcerative colitis. Diphtheria is not associated with skip lesions.
13.
FNAC needle size
Correct Answer
A. 22-26
Explanation
The correct answer is 22-26. This refers to the needle size for FNAC (Fine Needle Aspiration Cytology). FNAC is a procedure where a thin needle is used to extract cells from a lump or mass in the body for examination. The needle size range of 22-26 is commonly used for FNAC procedures, as it allows for precise and accurate sampling of cells while minimizing discomfort for the patient.
14.
Which fluid should be avoided following surgery or trauma?
Correct Answer
A. Isotonic saline
Explanation
Isotonic saline should be avoided following surgery or trauma because it can increase the risk of fluid overload. Isotonic saline has the same concentration of salt as the body's cells, so it does not cause a shift of fluid into or out of the cells. However, if large amounts of isotonic saline are administered, it can lead to an excessive volume of fluid in the body, which can strain the heart and other organs. Therefore, other fluids like 5% dextrose, blood, or Ringer's lactate may be preferred in these situations.
15.
The preservative used while packing catgut suture?
Correct Answer
A. Isopropyl alcohol
Explanation
Isopropyl alcohol is used as a preservative while packing catgut suture. Catgut is a type of surgical suture made from the intestines of animals, and it is prone to degradation and bacterial growth. Isopropyl alcohol acts as an antiseptic and preservative, helping to prevent bacterial contamination and maintain the sterility of the sutures. It is commonly used in medical settings for disinfection and preservation purposes.
16.
Gastro-oesophageal reflex is diagnosed with the help of _________________.
Correct Answer
C. 24 hr pH monitoring
Explanation
24-hour pH monitoring is considered the gold standard for diagnosing GERD. It measures the frequency and duration of acid reflux episodes by monitoring the pH levels in the oesophagus over a 24-hour period. This test provides detailed information about acid exposure and helps to correlate symptoms with acid reflux episodes.
17.
Hematogenous osteomyelitis affects?
Correct Answer
A. MetapHysis of bone
Explanation
Hematogenous osteomyelitis is an infection that spreads through the bloodstream and affects the bone. The infection typically starts in the metaphysis, which is the growing part of the bone located near the joint. This area has a rich blood supply, making it more susceptible to infection. The diaphysis is the shaft of the bone, while the epiphysis is the end of the bone. Although these areas can also be affected by osteomyelitis, the metaphysis is the most common site of infection. Therefore, the correct answer is "Metaphysis of bone."