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KROK 1 Dentistry 2019 Questions | KROKEXAM
Browse 2019 KROK 1 Dentistry exam questions with answers and explanations.
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Examination of a tooth shows that there is a large cavity in it’s crown. The floor of the cavity consists of thin layer of softened dentin that separates the cavity from the pulp. What is the most likely diagnosis?
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Complex therapy of a patient with bronchopneumonia accompanied by exhausting dry cough includes a certain mucolytic agent that deplymerizes mucoproteins. Name this drugs:
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A urine sample was taken via a catheter from the urinary bladder of a 17-year-old young man. Microscopy of the urine precipitate in this case can detect cells of the epithelium that lines the urinary bladder. What epithelium is it?
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Brain investigation by means of nuclear magnetic resonance revealed the patient to have a hematoma in the genu of the internal capsule. What pathway is damaged in this case?
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Due to an accident on board a nuclear submarine a soldier received a radiation dose of 5 Gy. He complains of headaches nausea and vertigo. What changes in Leukocyte number can be observed in this soldier after the irradiation?
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After a mechanical injury a torunquiet was applied to be patient's arm to stop the bleeding. Below the tourniquet the arm became pale and numb. this condition is caused by;
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During surgery on the stomach. The surgeon has cut the left gastric artery and ligated it. However the opposite end of the cut artery continued to bleed. What artery anastomoses with left gastric artery
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Often the cause of secondary immune deficiency is organism exposure to an infection, agents of Which reproduce directly in the cells of immune system and destroy them. Specify the diseases during which the described above occurs :
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A patient with malignant tumor was prescribed a narcotic analgesic to relieve the unbearable pain. What is the mechanism of analgesic action of such drugs?
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A tooth has been extracted It's crown is chisel-shaped, wide, with narrow edge. The root is cone-shaped and flattened from the sides. What tooth was extracted?
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A 50 years old man who has been suffering from chronic hepatic failure for years, developed Ascites. What is the main mechanism of development of this new disorder in the patient?
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A Patient was diagnosed with a genetic disorder leading to lipoprotein lipase deficiency. What Finding will be characteristics of biochemical blood analysis in this case?
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During oral cavity examination a dentist noticed eruption of the permanent canines in a child. The child grows and develops normally. Determine the child age:
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A 58-year-old male patient visited his dentist with the chief complaint of itching and burning sensation in his mouth. An intra Oral examination, diffuse white patches were seen on his tongue. Right and left buccal mucosa as well as on his hard palate and soft palate region. The potassium hydroxide preparation of the specimen revealed non-pigmented septate hyphae. Administration of which of the following is the most appropriate initial step in treatment of this patient?
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During teeth examination on the lateral surface of the upper molar there was detected a cone -shaped carious cavity with the base oriented towards the tooth surface and the apex -toward the tooth centre. softened dentin is visible in the floor of the carious cavity. Make the diagnosis:
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A 28-year-old patient presented with elevated blood pressure,hematuria,and facial edemas.Despite the treatment, the signs of renal failure were exacerbating .6 months later the patient died of uremia. Microscopy of the kidneys shows proliferation of nephrothelium in the glomerular capsules and proliferation of podocytes that contributes the cresent formation. Sclerosis and hyalinosis of glomeruli is observed. Make the diagnosis.
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People of various nationalities, who live in the Arctic climate, develop a number of features to adapt to their environment.Representatives of the Arctic adaptive type compared to the natives of the Central Africa have the following characteristic feature:
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During a brain surgery stimulation of the cerebral cortex resulted in tactile and thermal sensation in the patient. What gurus was stimulated?
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Biochemical analysis of aminoacid contents of freshly synthesized polypeptides shows that in the process of their translation the first aminoacid in each of these proteins will be the same . name this aminoacid
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An autopsy of a 42-year-old man, who suffered from chronic diffuse bronchitis and died of cardiopulmonary failure. Shows large hyperinflated lungs that cover mediastinum with their edges. The lungs do not deflate, are colored pale gray, crunch on section; lung surface does not straighten out when pressed with a finger, resulting in a permanent depression. Mucopurulent exudate is produced from the brochial lumen. What is the most likely diagnosis?
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On clinical examination a women presents with excessive sweating, tachycardia, loss of weight, and tremor. What endocrine pathology can cause these signs?
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The doctor stated the absence of respiration and cardiac activity in a traffic accident victim. This condition lasts for 1 minute already. This clinical presentation minute already. This clinical presentation corresponds with the following terminal state:
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During an experiment the neurophysiologist studies the conductivity of a nerve fiber. At first an Axon was stimulated by a threshold stimulus then the next three stimuli as a strong as the first one were applied. What was characteristic of the resulting impulse in the latter instance?
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An 11-year-old boy comes to the pediatric dentist with the chief complaint of ‘’not being able to close his left eye or smile’’ examination reveals the disappearance of the nasolabial fold. Theleft eyebrow sagging and partial inability to close the left eye.which of the following nersve is most likely affected?
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To treat ischemic heart disease ,a patient was prescribed a beta-adrenergic blocking agent. After a time he developed a cough and bronchospasm. What drug can cause these side effects?
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Prior to tooth extraction under a local anesthesia, the patient was tested for Novocaine allergy. The test result was positive. What substance can be used to administer anesthesia in this case?
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A patient complains of severe rhinitis and total loss of olfactory perception. Receptors of the olfactory analyzer are damaged in this patient. Where in the nasal cavity are these receptors located?
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A Smear specimen of human red bone marrow shows, among myeloid cells and adipocytes, certain Stellate cells with oxyphilic cytoplasm that are connected with their cellular processes. Name these Cells:
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A microslide shows a section of a bean-shaped organ with cortical and medullary substances. Its cortical substance contains separate spheric nodules 0.5-1 mm in diameter; its medullary substance consists of medullary cord. This histological section demonstrates the following organ:
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Histologic examination of an eye specimen shows multilayer structure. The outermost layeris represented by special pigment epithelium which is composed of cuboidal epithelium containing cells that absorbs light. The photoreceptor layer contains photosensitive outer segments of Rods and cones which of the following eye structure is mentioned?
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Formation of a large amount of immunoglobulins with various antigen specificity from a small number of genes occurs due to:
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A histological specimen shows three neurons pseudounipolar, bipolar, and multipolar. How many axons will each of the cells have?
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Lab rats were used to study the effects of a certain vitamin on the body. Deficiency of this vitamin has resulted in a disturbed reproductive function and skeletal muscle dystrophy. What vitamin is it?
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On examination a woman was diagnosed with a retropharyngeal abscess. What cervical space should be accessed by the surgeon lancing this abscess
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In the skin biopsy material in the epidermis there are cells with processes and dark brown granules in their cytoplasm. Name these cells:
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A 37-year-old male was admitted to a hospital complaining difficulty in swallowing, abdominal pain and breathing, constipation and nausea.He developed a respiratory failure and required endotracheal intubation and ventilation. 2 days before, the patient consumed dried salted fish barred from an artisanal producer. laboratory investigations for infectious pathogens was performed using kitt tarozzi method. observation under bright field microscopy revealed presents of typical microorganisms with "tennis racket" appearance which of the following is the most likely diagnosis?
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An athletic before a sports contest presents with elevated blood pressure and heart rate. What Part of the CNS induces these changes?
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Fibrocartilaginous layer of trachea consists of C-shaped hyaline cartilage rings, with open ends facing Posteriorly. What tissue connects these open ends?
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During a class in molecular biology the mutations resulting in production of abnormal haemoglobin are being studied. What amino acid substitution occurs when S-haemoglobin is being produced, resulting in the development of sickle cell anemia?
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Fetal malformations caused by such maternal diseases as rubella, syphilis, toxoplasmosis, cytomegaly, herpes and chlamydiosis. These malformations belong to the following type of variability:
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