4952. Which of the following represents most dangerous situation_____________?
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A. Rh ve mover, bearing her 1stRh + ve child

B. Rh+ ve mother, who is bearing 2nd Rh+ ve child

C. Rh+ ve mother, bearing her 1st Rh ve child

D. Rh+ ve mother, bearing her 2nd + ve child
4953. The most common problem with blood trans fusion_______________?
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A. Hypokalemia

B. Hemolytic reaction

C. Remission of disease

D. Metabolic acidosis

4955. Oxygen affinity is increased by all except_________________?
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A. Hypoxia

B. Alkalosis

C. Increased HbF

D. Hypothermia

4956. Bleeding time is prolonged in a person who_______________?
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A. Takes coumarin derivatives

B. Lacks factor VIII

C. Has liver disease

D. Takes large quantities of aspirin
4958. primary cause of bleeding disorder in liver damage is due to______________?
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A. Lack of vitamin B

B. Decreased level of prothrombin

C. Lack of vitamin K

D. Platelet deficiency

4959. Regulated bone growth through puberty occurs through__________________?
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A. Ectophyeseal plates

B. Epiphyseal plates

C. Chondrophyseal plates

D. Endophyseal plates

4960. Contractile element in myofibril is_______________?
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A. H band

B. Sarcomere

C. Sarcoplasm

D. A line

4961. Surfactant is secreted by_____________?
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A. Pnemocyte I

B. Goblet cells

C. Pulmonary vessels

D. Pnemocyte II
4962. Regarding Golgi tendon organ true is ______________?
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A. Sense muscle tension

B. Involved in reciprocal innervation

C. a- motor neuron stimulation

D. Senses dynamic length of muscle

4963. The major sign of hypoventilations_____________?
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A. Hypercapnia

B. Hypoxia

C. Cyanosis

D. Dyspnea

4966. Thromboxane is produced mainly by _______________?
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A. Damaged tissue

B. Liver

C. Platelets

D. Vascular endothelium

4968. Embryonic hemoglobin is composed of________________?
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A. Epsilon and gamma

B. Gamma and alpha

C. Gamma and beta

D. Alpha and beta

4969. The part of nephron least permeable to water is______________?
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A. Collecting tubule

B. Proximal tubule

C. Descending limb of loop of Henle

D. Ascending limb of loop of Henle
4970. Cardiac muscle contracts due to______________?
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A. Extracellular Ca+2

B. Sarcoplasmic ca+2

C. Extracellular Na+

D. Intracellular Na+

4971. To preserve blood for transfusion later______________?
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A. Dilute with equal volume of 0.9% saline

B. Add solution of sodium citrate

C. Add fibrinogen

D. Add solution of calcium chloride

4972. Skeletal muscles______________?
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A. Contracts when actin and myosin filaments shorten

B. Contraction is initiated by calcium binding to troponin

C. Contracts when calcium is taken up by sarcoplasmic reticulum

D. Contraction is initiated by calcium binding to tropomyosin

4973. True statement regarding hematopoiesis includes______________?
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A. None

B. Committed stem cells differentiates into only one cell type

C. Spleen plays a major role in adults (in lymphopoiesis )

D. RES plays a role
4974. Succinyl choline acts to block neuromuscular transmission by_______________?
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A. Blocking the release of acetyl choline at the end plate

B. Depolarizing the motor end plate of skeletal muscle

C. Inhibiting cholinesterase

D. Inhibiting the CNS

4978. Two major types of muscle fibres are found in humans_____________?
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A. White and yellow

B. White and red

C. White and gray

D. white and brown

4979. CO2 is transported in plasma as_____________?
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A. CO

B. Carbomino compounds

C. Dissolved

D. Bicarbonate
4980. Small lymphocyte is _____________?
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A. None of these

B. Same as the size of RBC

C. Bigger than RBC

D. Smaller than RBC
4981. The major functional difference between DNA and RNA is_____________?
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A. DNA is localized in nucleus

B. DNA carries the information in all organizations

C. RNA contains ribose

D. RNA does not contain thymine

4982. Open faced nucleus in a cell signifies______________?
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A. that the cell is active

B. That the cell is resting

C. nothing

D. that the cell is in transition phase

4983. Cyanosis or bluish coloration of skin and mucus membrane depends upon______________?
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A. Thickness of the skin

B. The absolute amount of reduced hemoglobin

C. The relative proportion of reduced and oxygenated hemoglobin

D. Fragility of capillaries

4984. Arterial O2 content is reduced in one of following ______________?
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A. Hypoxic or arterial hypoxia

B. Anemic hypoxia

C. Stagnant hypoxia

D. Histotoxic hypoxia

4985. Intracellular and interstitial body fluids have similar______________?
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A. Total osmotic pressure

B. Colloid osmotic pressure

C. Chloride ion concentrations

D. Potassium ion concentrations

4986. Skeletal muscles_____________?
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A. Contracts when actin and myosin filaments shorten

B. Contracts when calcium is taken up by sarcoplasmic reticulum

C. Contraction is initiated by calcium binding to troponin

D. Contraction is initiated by calcium binding to tropomyosin

4987. Patient with anemia tends to have all, except________________?
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A. Pallor of mucous membranes

B. Increased incidence of heart murmurs

C. Compensatory increase in cardiac output

D. A low PO2 in arterial blood
4988. Hematocrit relates to which of the following______________?
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A. Total blood volume

B. Total RBC volume

C. Plasma filtrate

D. Total WBC vlume

4989. Functional unit of kidney is______________?
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A. Glomerulus

B. Nephron

C. Loop of Henle

D. Collecting ducts

4991. Which of the following causes lysis of clot______________?
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A. Fibrin

B. Coagulase

C. Plasmin

D. Hyaluronidase

4992. The principal site for granulocytic hemopoiesis in the adult human is________________?
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A. The spleen

B. The liver

C. Yellow bone marrow

D. Red bone marrow
4993. Tendon (or) ligament is attached to a bone through ____________?
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A. Interstitial fibers

B. Haversian fibers

C. Tomes fibers

D. Sharpeys fibers
4994. In PHC, which anticoagulant is used to send the blood sample for blood glucose_____________?
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A. EDTA

B. Heparin

C. Potassium oxalate

D. Potassium oxalate+ sodium fluoride
4995. IN acute infection which of the following is found_______________?
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A. Neutropenia

B. Leukocytosis

C. Leucopenia

D. Neutrophilia
4996. A patient with A ve blood group can receive blood from_______________?
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A. B negative donor

B. A negative donor

C. Positive donor

D. AB positive donor

4997. Carbon monoxide poisoning causes_______________?
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A. Diffusion capacity of lungs decreases

B. Hypoxic hypoxia

C. Oxygen dissociation curve shifts to left

D. Cyanosis

4998. What is the glomerular filtration rate ?
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A. 125 ml/min

B. 150 ml/min

C. 100 ml/min

D. 175 ml/min

4999. The kidney secrete all of the following hormones except_____________?
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A. Vasopressin

B. Renin

C. 1,2,5 Dihydroxy cholecalciferol

D. Erythropoietin

5000. Major portion of glomerular filtrate is absorbed in__________________?
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A. Loop of Henle

B. Proximal segment

C. Distal convoluted tubule

D. Collecting duct