Medical MCQs

5099 MCQs  (Page 480 of 510)

To preserve blood for transfusion later______________?
A. Dilute with equal volume of 0.9% saline
B. Add solution of sodium citrate
C. Add solution of calcium chloride
D. Add fibrinogen
Histamine is present on surface of_______________?
A. Lymphocytes
B. Mast cells
C. Neutrophils
D. Erythrocytes
The most common problem with blood trans fusion_______________?
A. Hemolytic reaction
B. Remission of disease
C. Hypokalemia
D. Metabolic acidosis
The function of vitamin K is______________?
A. Thrombin formation
B. Prothrombin formation
C. Fibrin formation
D. Thromboplastin formation
Following are extrapyramidal tracts except______________?
A. Reticulospinal
B. Corticospinal
C. Rubrospinal
D. Vestibulospinal
Afferent component of corneal reflex is mediated by ________________?
A. Vagus nerve
B. Facial nerve
C. Trigeminal nerve
D. Glossopharyngeal nerve
Blood supply to the brain during moderate exercise________________?
A. Decreases
B. Remains constant
C. Increases
D. Increases then decreases
The pathway of pain from teeth and temperature is carried by ______________?
A. Corticospinal tract
B. Corticocerebral tract
C. Lateral spinothalamic tract
D. Ventral spinothalamic tract
DOPA and 5 – Hydroxytryptophan are clinically important because______________?
A. They cross blood brain barriers
B. They are acidic precursors of brain amines
C. They act as neuromodulators
D. They are metabolites of various neurogentic amines .