After car accident a 60 -year old man is admitted to hospital by an ambulance. He is unconscious, his skin is pale, and his pulse and respiratory rate are increased. His blood test shows: RBC - 2, 52*1012/L, hemoglobin – 72 g/L, pO2 - 95 mmHg. Which of the following types of hypoxia does the patient have?
Hypercapnia, hypoxemia, and respiratory acidosis develop in a 42-year-old man after a bronchial asthma attack. Which of the following types of hypoxia does the patient have?
A 28- year-old man complains of weakness and dyspnea during walking. On his examination the following changes in blood gases contents are identified: an increase of arterio-venous oxygen difference, hypoxia is diagnosed. Which of the following disorders is likely to be the cause of the hypoxia?
Poisoning with carbon monoxide
Several employees of a chemical plant are admitted to a hospital after accident at the plant. All patients complain of weakness, headache, dizziness, nausea, vomiting. Poisoning with nitrocompounds is suspected. Which of the following processes underlines hypoxia developed in the patients?
Inhibition of dehydrogenases
Inhibition of cytochrome oxidase
Decrease of function of flavine enzymes
Formation of methemoglobin
Formation of carboxyhemoglobin
16-year old girl is admitted to hospital with cyanide poisoning. Her blood analysis shows decreased arterio-venous oxygen difference. Which of the following types of hypoxia does the patient have?
A 70- year old man suffers from chronic heart failure. On his examination cyanosis, dyspnea and edema of lower extremities are revealed. Which of the following types of hypoxia does the patient have?
It is known that persons constantly living at high altitudes develop some adaptive reactions. Which of the following changes can be referred to adaptive one?
An increase in RBCs
Megaloblastic type of erythropoiesis
At a post-mortal examination it is established that a 23-year-old girl death results from cyanide poisoning. A disorder of which of the following processes is most likely to be the cause of her death?
Tissue supply with oxygen
Increased number of erythrocytes is revealed in the blood of people living in the mountains at altitude of 4000 m. Which of the following mechanisms is responsible for this phenomenon?
Increased vitamin B12 synthesis
Release of RBCs from their depots
Increased erythropoietin synthesis
A decrease in the circulating blood volume
A 57- year old man fell asleep inside his car with the engine running and died from carbon monoxide poisoning. Which of the following kinds of hemoglobin is likely to be the cause of his death?
A 29-year-old man with carbon monoxide poisoning is admitted to a hospital. He has signs of severe hypoxia. Which of the following substances is formed due to carbon monoxide poisoning?
At altitude of 3500 m most of unacclimatized individuals develop dyspnea, dizziness and palpitation. Which of the following types of hypoxia underlines these symptoms?
Environmental pollution with nitrocompounds results from an accident on a chemical plant. People living in the affected region consult a doctor about weakness, headache, nausea and vomiting. Poisoning with nitrocompounds is suspected. Which of the following processes underlines hypoxia developed in the patients?
Total respiratory insufficiency is revealed in a 35-year old woman suffering from bronchial asthma. Which of the following mechanisms is responsible for hypoxia in this patient?
Decreased lung perfusion
Decreased oxygen diffusion
Decreased lung ventilation
Suppression of the respiratory center
Weakness of respiratory muscle
A 4-year-old boy with nitrite poisoning is admitted to a hospital. Which of the following mechanisms is responsible for hypoxia in this patient?