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Raynaud disease characteristically:

Raynaud disease characteristically: A. occurs almost entirely in young male cigarette smokers. B. is associated with atherosclerosis. C. occurs primarily in tropical climates. D. is the result of a vasospastic...

July 24, 2021 2
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Cells normally found in an atheromatous plaque include all the following, except

Cells normally found in an atheromatous plaque include all the following, except A. smooth muscle cells. B. foam cells. C. macrophages. D. lymphocytes. E. platelets.

July 24, 2021 2
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The first-born infant of an Rh-negative 26 year old woman, who had two previous......

The first-born infant of an Rh-negative 26 year old woman, who had two previous second trimester abortions, has severe haemolysis and circulatory failure. This most likely could have been prevented by...

July 24, 2021 2
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Vitamin C deficiency results in

Vitamin C deficiency results in A. a decreased number of collagen fibres. B. an increased elastin:collagen ratio. C. formation of defective collagen fibres. D. detachment of ribosomes in fibroblasts. E....

July 24, 2021 2
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Reduction in the neutrophil granulocyte count may be

Reduction in the neutrophil granulocyte count may be A. Caused by drugs suppressing bone marrow activity. B. A consequence of tissue damage. C. Associated with painful throat ulcers. D. Associated with...

July 23, 2021 2
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Rejection of a transplanted organ is made less likely by

Rejection of a transplanted organ is made less likely by A. Treatment which reduces the blood lymphocyte count. B. Keeping the recipient in a germ-free environment. C. Irradiation of the transplanted organ...

July 23, 2021 2
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Respiratory alkalosis differs from metabolic alkalosis in that the

Respiratory alkalosis differs from metabolic alkalosis in that the A. Likelihood of tetany is less. B. Urine is alkaline. C. Arterial blood [HCO3 ] is normal or low. D. Arterial blood PCO2 is reduced....

July 23, 2021 2
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In investigating a patient’s acid-base status

In investigating a patient’s acid-base status A. Venous rather than arterial blood should be studied. B. Blood samples may be stored for up to 12 hours at room temperature before analysis. C. pH can...

July 23, 2021 2
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Blood eosinophils multiple choice question

Blood eosinophils A. Have agranular cytoplasm. B. Are about a quarter of all leukocytes. C. Are relatively abundant in the mucosa of the respiratory, urinary and alimentary tracts. D. Release cytokines....

July 17, 2021 2
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Antigens multiple choice question

Antigens A. Are usually proteins or polypeptide molecules. B. Can only be recognized by immune system cells previously exposed to that antigen. C. Are normally absorbed from the gut via lymphatics and...

July 17, 2021 2
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Cerebrospinal fluid multiple choice question

Cerebrospinal fluid A. Is an ultrafiltrate of plasma. B. Is the main source of the brain’s nutrition. C. Has the same pH as arterial blood. D. Has a higher glucose concentration than has plasma. E. Has...

July 17, 2021 2
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The pH multiple choice question

The pH A. Of arterial blood normally ranges from 7.2 to 7.6. B. Units express [H ] in moles/litre. C. Of blood is directly proportional to the PCO2. D. Of blood is directly proportional to [HCO3 ]. E....

July 17, 2021 2
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The cell membranes in skeletal muscle

The cell membranes in skeletal muscle A. Are impermeable to fat-soluble substances. B. Are more permeable to sodium than to potassium ions. C. Become more permeable to glucose in the presence of insulin....

July 16, 2021 2
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Blood multiple choice question:

Blood A. Makes up about 7 per cent of body weight. B. Forms a higher percentage of body weight in fat than in thin people. C. Volume can be calculated by multiplying plasma volume by the haematocrit (expressed...

July 16, 2021 2
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The specific gravity (relative density) of

The specific gravity (relative density) of A. Red cells is less than that of plasma. B. Plasma is due more to its protein than to its electrolyte content. C. Plasma decreases as extracellular fluid and...

July 16, 2021 2
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Lymphocytes multiple choice question:

Lymphocytes A. Constitute 1–2 per cent of circulating white cells. B. Are motile. C. Can transform into plasma cells. D. Decrease in number following removal of the adult thymus gland. E. Decrease in...

July 16, 2021 2
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Which of the following does not inhibit platelet activation?

Which of the following does not inhibit platelet activation? a. Ecto-ADPase b. Prostacyclins c. Nitric oxide d. ADP

July 15, 2021 2
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Which of the following is true about von Willebrand factor?

Which of the following is true about von Willebrand factor? a. It cross links platelet to each other b. It is functional in large multimeric form c. Plasma VWF is derived from platelets d. It carries factor...

July 15, 2021 2
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In TTP, anemia is due to:

In TTP, anemia is due to: a. Autoimmunity b. Hypersplenism c. Bleeding d. Platelet aggregates (microangiopathy)

July 15, 2021 2
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Which of the following is not a first line therapy in ITP?

Which of the following is not a first line therapy in ITP? a. IVIg b. Anti-D c. Rituximab d. Steroids

July 15, 2021 2
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