MCQOPTIONS
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MCQOPTIONS
This section includes 491 Mcqs, each offering curated multiple-choice questions to sharpen your Medical Subjects knowledge and support exam preparation. Choose a topic below to get started.
| 451. |
Arterial PO2 is reduced in_____________? |
| A. | Anemia |
| B. | KCN poisoning |
| C. | Pulmonary hypoventilation |
| D. | CO poisoning |
| Answer» D. CO poisoning | |
| 452. |
Arterial O2 content is reduced in one of following ______________? |
| A. | Stagnant hypoxia |
| B. | Anemic hypoxia |
| C. | Histotoxic hypoxia |
| D. | Hypoxic or arterial hypoxia |
| Answer» C. Histotoxic hypoxia | |
| 453. |
Aphasia is most likely associated with a lesion in_______________? |
| A. | Broca’s area |
| B. | Sensory area |
| C. | Primary motor area |
| D. | Visual area |
| Answer» B. Sensory area | |
| 454. |
An important non- respiratory function of lungs is_____________? |
| A. | Anion balance |
| B. | Sodium balance |
| C. | Potassium balance |
| D. | Ca+2 balance |
| Answer» C. Potassium balance | |
| 455. |
Amount of glucose absorbed in proximal convoluted tubule_______________? |
| A. | 100% |
| B. | 0% |
| C. | 60% |
| D. | 50% |
| Answer» B. 0% | |
| 456. |
Ammonia in the kidney tubules is excreted in exchange for______________? |
| A. | HCO3- |
| B. | Na+ |
| C. | CL- |
| D. | PO4-2 |
| Answer» C. CL- | |
| 457. |
Alveolar O2 tension is______________? |
| A. | Increased by hyperventilation |
| B. | Decreased by hyperventilation |
| C. | Similar to venous O2 tension |
| D. | Not affected by respiratory depression |
| Answer» B. Decreased by hyperventilation | |
| 458. |
All the heart valves are open during which stage of cardiac cycle __________________? |
| A. | Systolic ejection |
| B. | Isovolumetric relaxation |
| C. | Isovolumetric contraction |
| D. | None of the above |
| Answer» E. | |
| 459. |
All the following hormones bind to cell surface receptors of the target tissues EXCEPT_____________? |
| A. | Thyroid stimulating hormone |
| B. | Glucagon |
| C. | Estrogen |
| D. | Epinephrine |
| Answer» D. Epinephrine | |
| 460. |
All the following hormones are secreted by adrenal cortex except_______________? |
| A. | Estriol |
| B. | Cortisol |
| C. | Corticosterone |
| D. | Aldosterone |
| Answer» B. Cortisol | |
| 461. |
All the following causes the secretion of gastric juice during cephalic phase EXCEPT______________? |
| A. | Food in the mouth |
| B. | Sight of food |
| C. | Food in the stomach |
| D. | Thought of food |
| Answer» D. Thought of food | |
| 462. |
All of the following hormones have cell surface receptors except_____________? |
| A. | Adrenalin |
| B. | Growth Hormone |
| C. | Insulin |
| D. | Thyroxine |
| Answer» E. | |
| 463. |
All of the following are adverse effects of long- term corticosteroids EXCEPT____________? |
| A. | Hypoglycemia |
| B. | Psychosis |
| C. | Peptic ulcers |
| D. | Osteoporosis |
| Answer» B. Psychosis | |
| 464. |
All are seen in Cushing ‘s syndrome except_______________? |
| A. | Truncal obesity |
| B. | Hypertension |
| C. | Hypoglycemia |
| D. | Poor wound healing |
| Answer» D. Poor wound healing | |
| 465. |
All are features of skeletal muscle except______________? |
| A. | Cylindrical |
| B. | Transverse striation |
| C. | Centrally placed nuclei |
| D. | Multiple nuclei |
| Answer» D. Multiple nuclei | |
| 466. |
All are actions of CCK except_______________? |
| A. | Relax lower esophageal sphincter |
| B. | Increased pancreatic secretion |
| C. | Increased gastric secretion |
| D. | Causes GB contraction |
| Answer» D. Causes GB contraction | |
| 467. |
Aldosterone______________? |
| A. | Increases reabsorption of sodium |
| B. | Increases exceretion of potassium |
| C. | Increases retention of sodium |
| D. | Both ‘A’ and ‘B’ |
| Answer» D. Both ‘A’ and ‘B’ | |
| 468. |
Aldosterone secretion is increased when there is a fall in____________? |
| A. | Plasma K+ |
| B. | Plasma Na+ |
| C. | pH of the plasma |
| D. | Angiotensin II level |
| Answer» C. pH of the plasma | |
| 469. |
Aldosterone production is controlled by _____________? |
| A. | Anterior pituitary gland |
| B. | Posterior pituitary gland |
| C. | Hypothalamus |
| D. | Adrenal gland |
| Answer» B. Posterior pituitary gland | |
| 470. |
Albumin is_____________? |
| A. | Nucleo protein |
| B. | Chromo protein |
| C. | Phospho protein |
| D. | Simple protein |
| Answer» E. | |
| 471. |
Afferent component of corneal reflex is mediated by ________________? |
| A. | Vagus nerve |
| B. | Facial nerve |
| C. | Trigeminal nerve |
| D. | Glossopharyngeal nerve |
| Answer» D. Glossopharyngeal nerve | |
| 472. |
Adrenaline used for controlling of bleeding during surgery may result in________________? |
| A. | Syncope |
| B. | Cardiac arrhythmias |
| C. | Drastic fall in blood pressure |
| D. | Precipitation of allergic reaction |
| Answer» C. Drastic fall in blood pressure | |
| 473. |
Adrenal gland has two parts; cortex and medulla. Which of the following is correct______________? |
| A. | Cortex is under the control of ACTH |
| B. | Both cortex and medulla are under the control of autonomic nervous system |
| C. | Cortex is exocrine and medulla is endocrine |
| D. | All of the above |
| Answer» B. Both cortex and medulla are under the control of autonomic nervous system | |
| 474. |
Acute bacterial pyogenic infection manifests as_________________? |
| A. | Leukopenia |
| B. | Leukocytosis |
| C. | Neutropenia |
| D. | Lymphopenia |
| Answer» C. Neutropenia | |
| 475. |
Activation of which one of the following coagulation factors is not essential for hemostasis________________? |
| A. | XII |
| B. | XI |
| C. | IX |
| D. | X |
| Answer» B. XI | |
| 476. |
Acromegaly is a disorder of____________? |
| A. | Excess growth hormone secreting |
| B. | Excess thyroxine secretion |
| C. | Excess ACTH secretion |
| D. | Excess FSH secretion |
| Answer» B. Excess thyroxine secretion | |
| 477. |
Absolute refractory period in heart______________? |
| A. | Lasts till cardiac contraction |
| B. | Longer than refractory period in skeletal muscle |
| C. | A phase of cardiac cycle in which heart cannot be stimulated by any amount of stimulus |
| D. | Corresponds with duration of action potential |
| E. | All of the above |
| Answer» F. | |
| 478. |
Absolute period when whole heart is in diastole is______________? |
| A. | 0.7 seconds |
| B. | 0.3 seconds |
| C. | 0.7 seconds |
| D. | 0.4 seconds |
| Answer» E. | |
| 479. |
Abdominal visceral pain is transmitted by ________________? |
| A. | fibers |
| B. | fibers |
| C. | Parasympathetic fibers |
| D. | Sympathetic fibers |
| Answer» E. | |
| 480. |
AB group has following agglutinins_______________? |
| A. | Anti – A & Anti – B |
| B. | Neither anti A nor anti – B |
| C. | Anti – A |
| D. | Anti – B |
| Answer» C. Anti – A | |
| 481. |
AB blood group antigen are known as ________ factors? |
| A. | Duffy |
| B. | Landsteiner |
| C. | Rhesus |
| D. | Lutheran |
| Answer» C. Rhesus | |
| 482. |
A reliable screening test for platelet function is_______________? |
| A. | CT |
| B. | PT |
| C. | Thrombin |
| D. | Clot retraction time |
| Answer» E. | |
| 483. |
A phaeochromocytoma is a tumour of the____________? |
| A. | Adrenal cortex |
| B. | Parathyroids |
| C. | Pituitary |
| D. | None of the above |
| Answer» E. | |
| 484. |
A patient with A – ve blood group can receive blood from_______________? |
| A. | Positive donor |
| B. | B negative donor |
| C. | AB positive donor |
| D. | A negative donor |
| Answer» E. | |
| 485. |
A motor unit is made up of______________? |
| A. | A flexor muscle and an extensor muscle |
| B. | A single skeletal muscle and all the motor peurons that supply it |
| C. | A single motor neuron and all the muscle fibers it innervates |
| D. | All the motor neurons in which response are observed after maximal stimulation of a single sensory nerve |
| Answer» D. All the motor neurons in which response are observed after maximal stimulation of a single sensory nerve | |
| 486. |
A diet deficient in calcium will result in_____________? |
| A. | Stimulation of the thyroid gland |
| B. | Increased ability to cross – link fibrin |
| C. | Production of Calcitonin and a low blood calcium level |
| D. | Production of parathyroid hormone and bone resorption |
| Answer» E. | |
| 487. |
A decrease in the urine output is called_____________? |
| A. | Dysuria |
| B. | Nocturia |
| C. | Oliguria |
| D. | Plyuria |
| Answer» D. Plyuria | |
| 488. |
A decrease in the arterial PO2 is seen in______________? |
| A. | Decrease in hemoglobin concentration of arterial blood |
| B. | Paralysis of inspiratory muscles |
| C. | Sluggish blood flow |
| D. | High altitudes |
| Answer» E. | |
| 489. |
A child with stunted growth with a stuffed – belly, and short stature with mental retardation is suffering from the deficiency of which of the following______________? |
| A. | Thyroxine |
| B. | Growth hormone |
| C. | Rickets |
| D. | Parathyroid |
| Answer» B. Growth hormone | |
| 490. |
A child is below the third percentile for height. Growth velocity is normal, but chronologic age is more than skeletal age. The most likely diagnosis is______________? |
| A. | Constitutional delay in growth |
| B. | Genetic short stature |
| C. | Primordial dwarfism |
| D. | Hypopituitarism |
| Answer» B. Genetic short stature | |
| 491. |
2nd heart sound is characterized by all except______________? |
| A. | Due to closure of semilunar valves |
| B. | Is occasionally split |
| C. | Has longer duration than 1st heart sound |
| D. | Marks the onset of diastole |
| Answer» D. Marks the onset of diastole | |