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KROK 1 Dentistry 2008 Questions | KROKEXAM

Browse 2008 KROK 1 Dentistry exam questions with answers and explanations.

Exam questions

200 Questions
121

During lancing of deep abscess of a cheek a vertical section was performed. It resulted in paresis (dysfunction) of muscles on the side of operation. There were cut the branches of the following nerve:

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122

A patient has disturbed digestion of proteins, fats and carbohydrates. It is most likely to be caused by reduced secretion of the following digestive juice:

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123

A 42 y.o. man who had been suffering from chronic granulomatous periodontitis and chronic purulent osteomyelitis of his lower jaw for 8 years died under conditions of acute renal insufficiency. What complication of purulent osteomyelitis was developed in kidneys?

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124

An electronic microphotography represents a cell without nucleoli and nuclear membrane. Chromosomes are loosely scattered, centrioles migrate to the poles. What phase of cell cycle is it?

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125

An embryon has signs of disturbed process of dorsal mesoderm segmentation and somite generation. What part of skin is most likely to have developmental abnormalities?

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126

A couple applied to a genetic consultation with a question about probability of giving birth to children with X-linked rachitis (dominant character). Father is healthy, mother is heterozygous and suffers from this disease. Vitamin-resistant rachitis can be inherited by:

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127

Examination of a microspecimen made of an unknown organ revealed some acini that contained 10-15 cone cells with basophilic cytoplasm, round nucleus and well developed granular endoplasmic reticulum. An acinus is surrounded by a basal membrane with myoepithelial cells localized in its splitting. What organ is the slice made of?

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128

Microscopical examination of an infiltrate removed from the submandibular skin area of a 30 y.o. man revealed foci of purulent fluxing surrounded by maturing granulations and mature connective tissue, the pus contains druses consisting of multiple short rod-like elements with one end attached to the homogenous centre. What disease is it?

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129

A patient has a trauma of his upper jaw with an injury of supraorbital foramen. What jaw surface was damaged?

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130

In course of an experiment a nerve is being stimulated by electric impulses. As a result of it sublingual and submaxillary glands discharge some dense viscous saliva. What nerve is being stimulated?

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131

A 5 y.o. child had a temperature rise up to 40°C, acute headache, vomiting, anxiety, chill. 4 days later there appeared hemorrhagic skin eruption, oliguria and adrenal insufficiency that caused death. Bacteriological examination of smears from the child's pharynx revealed meningococcus. What disease form was revealed?

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132

An 18 y.o. boy applied to a geneticist. The boy has asthenic constitution: narrow shoulders, broad pelvis, nearly hairless face. Evident mental deficiency. The provisional diagnosis was Klinefelter's syndrome. What method of clinical genetics will enable the doctor to confirm this diagnosis?

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133

A pregnant woman lost for about 800 ml of blood during labour. There is also tachycardia, arterial pressure is 100/70 mm Hg, tachypnea up to 28/min. What hypoxia type is primary in such clinical situation?

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134

A patient with enteritis accompanied with intense diarrhea has reduced quantity of water in the extracellular space and increased quantity of water inside the cells as well as low blood osmolarity. Name this disorder of water-electrolytic metabolism:

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135

In course of an operation on account of a granuloma in the area of the right upper incisor a patient began to bleed. The hemorrhage was stopped just only 3 hours later. The patient's anamnesis contains information about chronic lymphatic leukemia. What is the most probable cause of hemorrhage?

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136

Microscopical examination of a surgical specimen (an ulcered part of a lip) revealed in the connective tissue of mucous membrane near the borders and under the floor of the ulcer some epithelial complexes consisting of atypic multi-stratal epithelium with accumulations of bright pink concentric formations. What pathology is it?

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137

A surgeon is going to take lymph from a patient's thoracic duct, from where it flows into the venous stream. Where should he insert a catheter into?

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138

Deglutition of a patient is disturbed as a result of a trauma. The most probable cause of this disturbance is affection of the following part of CNS:

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139

48 hours after tuberculine test (Mantoux test) a child had a papule up to 10 mm in diameter on the spot of tuberculine introduction. What hypersensitivity mechanism underlies the mentioned changes?

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140

An electronic microphotography represents a cell of neural origin that is a component of mucous membrane epithelium. Distal part of its peripheral process has a clavate thickening with 1012 cilia sprouting from it. What cell is it?

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141

Laboratory examination of a child revealed high content of leucine, valine, isoleucine and their ketoderivates in blood and urine. Urine had the typical smell of maple syrup. This disease was caused by deficiency of the following enzyme:

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142

For the preparation of the burned skin surface of a patient a certain medication was applied. Its antiseptic properties are provided by free oxygen released in presence of organic substances. What medication is it?

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143

A 5 y.o. child's enamel and dentin are striated with yellowish-brown stripes, the child has also dentin exposure, multiple caries. It is known that the child's mother had been taking antibiotics during her pregnancy. What medication might have caused such by-effect?

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144

A 52 y.o. patient ill with mandibular cancer took radiation treatment. The tumor became less in size. What mechanism of cell destruction is the primary cause of radiation treatment effectiveness?

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145

After a patient recovered from a cold he got disturbed lacrimation. What vegetative ganglion was damaged most of all?

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146

Estimation of heat expenditures of a man's organism by means of inderect calomitery had the following results: the organism consumed 1000 ml of oxygen and emitted 800 ml of carbonic acid per minute. What is the respiratory quotient of a man under examination?

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147

Mucous membrane of a patient's oral cavity has a greyish-white focus, the mass is dense and protrudes above the mucous membrane. Histological examination revealed hyperkeratosis, parakeratosis and acanthosis of epithelium in this area. What pathological process was revealed in the mucous membrane?

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148

A patient consulted a doctor about high pain sensitivity of skin behind his auricle and external acoustic meatus. Palpation behind the sternocleidomastoid muscle is painful. It can be caused by irritation of the following nerve:

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149

A patient complained about a carbuncle on his face. Examination results: neither dense nor painful edema of subcutaneous cellular tissue, there is black crust in the middle of the carbuncle and peripheral vesicular rash around it. Bacteriological examination revealed presence of immobile streptobacilli able of capsulation. What microorganisms are causative agents of this disease?

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150

A 30 y.o. patient is diagnosed with amebic dysentery. This diagnosis was bacteriologically confirmed. Name the preparation for its treatment:

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151

Examination of a tooth slice of a 42 y.o. man revealed on the dentinal-enamel border some solid linear fusiform structures as long as 1/3 of enamel depth. What structures were revealed?

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152

A doctor needs to anaesthetize the anterior part of mucous membrane of hard palate. What nerves should he block?

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153

A patient has a disturbed function of masticatory muscles. What nerve is damaged?

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154

A patient ill with chronic glomerulonephritis has a disturbed incretory function of kidneys. It will result in the deficit of the following blood corpuscles:

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155

A 7 y.o. girl was admitted to the infectious diseases hospital with fever, sore throat, common weakness. A doctor suspected diphtheria. What would be crucial for diagnosis confirmation after pure culture of causative agent had been singled out?

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156

A 50 y.o. man abruptly felt palpitation, heart ache, strong weakness, rise of arterial pressure. His pulse is irregular and deficient. ECG shows no P wave and different R — R intervals. What cardiac rate abnormality is it?

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157

A patient applied to a doctor with complaints about noise and painful sensations in his ear. Objectively: a patient is ill with acute respiratory disease, rhinitis. The infection that caused inflammation of tympanic cavity could have penetrated into it through the following pharynx opening:

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158

An electrical cardiostimulator was implanted to a 75 y.o. man with heart rate of 40 bpm. After that heart rate rose up to 70 bpm. Cardiostumulator assumed the function of the following heart part:

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159

Enamel is characterized by high resistance to the influence of various mechanical and chemical factors. What component's synthesis provideds such resistance?

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160

Roentgenological examination of a patient revealed a cyst in the area of a premolar that contained a tooth in its cavity. Microscopical examination reveals that the cyst wall is represented by connective tissue and lined with multi-stratal squamous cell epithelium. Specify the diagnosis:

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