Which of the following are INCORRECT with respect to methaemogloblinemia?Question 4Select one:a.The skin is likely to bluish (cyanosis)b.A drug or toxic compound can cause methaemoglobinemia by oxidizing Hbc.Patients rapidly respond to oxygen (O2) therapyd.Hereditary defect in methaemoglobin reductase gene can cause methaemoglobinemiae.Inheritance of HbM can cause methaemoglobinemia
Question
Which of the following are INCORRECT with respect to methaemogloblinemia?Question 4Select one:a.The skin is likely to bluish (cyanosis)b.A drug or toxic compound can cause methaemoglobinemia by oxidizing Hbc.Patients rapidly respond to oxygen (O2) therapyd.Hereditary defect in methaemoglobin reductase gene can cause methaemoglobinemiae.Inheritance of HbM can cause methaemoglobinemia
Solution
The incorrect statement with respect to methaemogloblinemia is:
c. Patients rapidly respond to oxygen (O2) therapy
Explanation:
Methemoglobinemia is a condition caused by elevated levels of methemoglobin in the blood. Methemoglobin is a form of hemoglobin that is altered such that it has a greater affinity for oxygen than does normal hemoglobin. This means that it does not release oxygen to the tissues as readily as normal hemoglobin, leading to tissue hypoxia.
a. The skin is likely to be bluish (cyanosis) - This is correct. Cyanosis, a bluish discoloration of the skin, is a common symptom of methemoglobinemia.
b. A drug or toxic compound can cause methemoglobinemia by oxidizing Hb - This is correct. Certain drugs and toxins can oxidize hemoglobin, converting it into methemoglobin.
c. Patients rapidly respond to oxygen (O2) therapy - This is incorrect. Because methemoglobin has a higher affinity for oxygen and does not release it as readily, oxygen therapy is not typically effective for treating methemoglobinemia.
d. Hereditary defect in methemoglobin reductase gene can cause methemoglobinemia - This is correct. Certain genetic defects, such as a deficiency in methemoglobin reductase (an enzyme that reduces methemoglobin back to hemoglobin), can cause methemoglobinemia.
e. Inheritance of HbM can cause methemoglobinemia - This is correct. HbM disease is a rare inherited disorder in which the structure of hemoglobin is abnormal, leading to increased levels of methemoglobin.
Similar Questions
Select the best description for the two statements below:a. The only haematological side effect of drugs is leucopeniab. Inherited disorders of metabolism such as glucose-6-phosphate dehydrogenase deficiencies can affect red blood cell functionQuestion 9Select one:a.both option a and option b are wrongb.both option a and option b are correctc.Option a is wrong and option is correctd.Option a is correct and option b is wrong
Which of the following conditions is characterized by poor oxygenation of the blood?a) Jaundiceb) Cyanosisc) Pallord) Bronzing
Which of these are potential long-term consequences of poorly-treated diabetes mellitus?W. Non-specific glycosylation leading to changes in structure and function of proteins.X. Tissue hypoxia due to basement membrane thickening and reduced capillary lumen diameter.Y. Cataracts, retinopathies and therefore blindness.Z. Increased inflammatory responses resulting in reduced infections and improved wound healing.Question 43Select one:a.if only W, X and Y are correctb.if only W and Y are correctc.if only X and Z are correctd.if only Z is correcte.if all are correct
Which of the following statements is/are correct in relation to poorly treated diabetes mellitus?W. Microangiopathy typically results in plasma proteins being retained in blood vessels.X. Basement membranes of capillaries may thicken, resulting in reduced oxygen delivery to tissue. Y. The main eye pathology seen is optic neuritis (inflammation of the optic nerve).Z. Damage in cells that do not require insulin for glucose uptake (e.g. neurons) is mainly due to increased intracellular glucose accumulation.Question 22Select one:a.if only W, X and Y are correctb.if only W and Y are correctc.if only X and Z are correctd.if only Z is correcte.if all are correct
Which of the following statements is/are correct in relation to poorly treated diabetes mellitus?W. Microangiopathy typically results in plasma proteins being retained in blood vessels.X. Basement membranes of capillaries may thicken, resulting in reduced oxygen delivery to tissue. Y. The main eye pathology seen is optic neuritis (inflammation of the optic nerve).Z. Damage in cells that do not require insulin for glucose uptake (e.g. neurons) is mainly due to increased intracellular glucose accumulation.Question 13Select one:a.if only W, X and Y are correctb.if only W and Y are correctc.if only X and Z are correctd.if only Z is correcte.if all are correct
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.