Allergic reactions are mediated by (A) IgA (B) IgG (C) IgD (D) IgE

Last Answer : Immunoglobulin G (IgG), the most abundant type of antibody, is found in all body fluids and protects against bacterial and viral infections. Immunoglobulin M (IgM), which is found mainly in the blood and lymph fluid, is the first antibody to be made by the body to fight a new infection.

Which is the only immunoglobulin that can cross the placenta? a. IgA b. IgD c. IgE d. IgG

Description : Which is the only immunoglobulin that can cross the placenta? a. IgA b. IgD c. IgE d. IgG

Last Answer : d. IgG

Complement system can be activated by binding of antigen to (A) IgA (B) IgD (C) IgE (D) IgM

Description : Complement system can be activated by binding of antigen to (A) IgA (B) IgD (C) IgE (D) IgM

Last Answer : Answer : D

Gamma heavy chains are present in (A) IgA (B) IgG (C) IgM (D) IgD

Description : Gamma heavy chains are present in (A) IgA (B) IgG (C) IgM (D) IgD

Last Answer : Answer : B

The largest immunoglobulin is (A) IgA (B) IgG (C) IgM (D) IgD

Description : The largest immunoglobulin is (A) IgA (B) IgG (C) IgM (D) IgD

Last Answer : Answer : C

The most abundant immunoglobulin in plasma is (A) IgA (B) IgG (C) IgM (D) IgD

Description : The most abundant immunoglobulin in plasma is (A) IgA (B) IgG (C) IgM (D) IgD

Last Answer : Answer : B

On exposure to any antigen, the first antibody to be formed is of the following class: (A) IgA (B) IgG (C) IgM (D) IgE

Description : On exposure to any antigen, the first antibody to be formed is of the following class: (A) IgA (B) IgG (C) IgM (D) IgE

Last Answer : Answer : C

The immunoglobulin having the longest half-life is (A) IgA (B) IgG (C) IgM (D) IgE

Description : The immunoglobulin having the longest half-life is (A) IgA (B) IgG (C) IgM (D) IgE

Last Answer : Answer : B

An immunoglobulin found in exocrine secretions is (A) IgA (B) IgG (C) IgM (D) IgE

Description : An immunoglobulin found in exocrine secretions is (A) IgA (B) IgG (C) IgM (D) IgE

Last Answer : Answer : A

The _____ class of antibodies is the principal component of a secondary antibody response. a. IgM b. IgD c. IgG d. IgE

Description : The _____ class of antibodies is the principal component of a secondary antibody response. a. IgM b. IgD c. IgG d. IgE

Last Answer : c. IgG

Which of the following mediates Type I hypersensitivity reaction? A- IgE B- IgG C- IgM D- IgD

Description : Which of the following mediates Type I hypersensitivity reaction? A- IgE B- IgG C- IgM D- IgD

Last Answer : IgE

Which of the following immunoglobulins does constitute the largest percentage in human milk? (a) IgA (b) IgG (c) IgD (d) IgM

Description : Which of the following immunoglobulins does constitute the largest percentage in human milk? (a) IgA (b) IgG (c) IgD (d) IgM

Last Answer : (a) IgA

The maternal _____ antibodies remain with the child for approximately three to six months after birth providing immunity after birth. a. IgA b. IgG c. IgM d. IgD

Description : The maternal _____ antibodies remain with the child for approximately three to six months after birth providing immunity after birth. a. IgA b. IgG c. IgM d. IgD

Last Answer : b. IgG

Of the five classes of antibodies,_____ and_____ are primary disease fighters, while secretory _____ is found on body (mucosal) surfaces. a. IgA, IgG, IgD b. IgG, IgA, IgM c. IgG, IgD, IgM d. IgG, IgM, IgA

Description : Of the five classes of antibodies,_____ and_____ are primary disease fighters, while secretory _____ is found on body (mucosal) surfaces. a. IgA, IgG, IgD b. IgG, IgA, IgM c. IgG, IgD, IgM d. IgG, IgM, IgA

Last Answer : d. IgG, IgM, IgA

Answer: b, c, d Eosinophils constitute 1% to 3% of the leukocyte population of the bloodstream. They also reside in tissues and they exhibit phagocytic capabilities. They are less effective as bactericidal cells than neutrophils, but play a major role in defense against parasites. Eosinophils are primary effectors in allergic reactions by virtue of IgE receptors (which are not found on neutrophils). Basophils are fully differentiated cells released into the circulation from bone marrow. Basophils are the major, if not sole, source of histamine in the blood. Histamine is a vasoactive amine and the major mediator of the IgE-mediated immediate hypersensitivity response. Histamine release from basophils is induced by complement products as well as by IgE receptors. Mast cells are formed from

Description : Answer: b, c, d Eosinophils constitute 1% to 3% of the leukocyte population of the bloodstream. They also reside in tissues and they exhibit phagocytic capabilities. They are less ... the cycle of events that result in recruitment and activation of inflammatory cells at sites of inflammation

Last Answer : Cellular injury from oxidants may be manifest by which of the following? a. Cell membrane lipid peroxidation b. DNA strand breaks c. Cytoskeletal disassembly d. ATP depletion

Which AB is responsible for atopy? A. IgA B. IgE C. IgG D. IgW

Description : Which AB is responsible for atopy? A. IgA B. IgE C. IgG D. IgW

Last Answer : Ans: B

Which of the following classes of immunoglobulins is important in immunity to T. vaginalis? A A. IgA B. IgG C. IgE D. IgM

Description : Which of the following classes of immunoglobulins is important in immunity to T. vaginalis? A A. IgA B. IgG C. IgE D. IgM

Last Answer : IgA

The colostrum, or first milk of a nursing mother, contains _____ that is transferred to the nursing child. a. IgA b. IgG c. IgM d. IgE

Description : The colostrum, or first milk of a nursing mother, contains _____ that is transferred to the nursing child. a. IgA b. IgG c. IgM d. IgE

Last Answer : a. IgA

Resistance to disease in the passageways of the respiratory and gastrointestinal tract is dependent on antibodies in the class _____. a. IgG b. IgA c. IgE d. IgM

Description : Resistance to disease in the passageways of the respiratory and gastrointestinal tract is dependent on antibodies in the class _____. a. IgG b. IgA c. IgE d. IgM

Last Answer : b. IgA

This dimeric antibody class often occurs in secretions of the respiratory and gastrointestinal tracts. a. IgE b. IgM c. IgA. d. IgG

Description : This dimeric antibody class often occurs in secretions of the respiratory and gastrointestinal tracts. a. IgE b. IgM c. IgA. d. IgG

Last Answer : c. IgA.

14.The immunoglobulin present in colostrum is (a) IgE (b) IgM (c) IgG (d) IgA

Description : 14.The immunoglobulin present in colostrum is (a) IgE (b) IgM (c) IgG (d) IgA

Last Answer : (b) IgM

An essential element of all allergy reactions is the a. Release of interferons from tissue cells. b. Accumulation of ige on the surfaces of mast cells and basophils. c. Passage of igg from the immune system to local tissue cells. d. Elimination of all traces of plasma cells from the body.

Description : An essential element of all allergy reactions is the a. Release of interferons from tissue cells. b. Accumulation of ige on the surfaces of mast cells and basophils. c. Passage of igg from the immune system to local tissue cells. d. Elimination of all traces of plasma cells from the body.

Last Answer : b. Accumulation of ige on the surfaces of mast cells and basophils.

An immunoglobulin which can cross the placental barrier is (A) IgA (B) IgM (C) IgD (D) None of these

Description : An immunoglobulin which can cross the placental barrier is (A) IgA (B) IgM (C) IgD (D) None of these

Last Answer : Answer : D

Type I ADR reactions is___________ a) Caused when T-cells bind to a specific antigen b) Caused by tissue injury c) IgE mediated d) Caused by cytotoxic antibodies

Description : Type I ADR reactions is___________ a) Caused when T-cells bind to a specific antigen b) Caused by tissue injury c) IgE mediated d) Caused by cytotoxic antibodies

Last Answer : c) IgE mediated

Which one of the following is true of IgE? 1) Is present in plasma in the same concentration as IgG 2) Is increased acutely in an asthmatic attack 3) Crosses the normal placenta 4) Is increased in the serum of atopic individuals 5) Is involved in type 2 hypersensitivity

Description : Which one of the following is true of IgE? 1) Is present in plasma in the same concentration as IgG 2) Is increased acutely in an asthmatic attack 3) Crosses the normal placenta 4) Is increased in the serum of atopic individuals 5) Is involved in type 2 hypersensitivity

Last Answer : Answers-4 IgG is the predominant form of immunoglobulin in plasma at a concentration around 10,000 times that of IgE. IgG crosses the placenta to confer immunity to the fetus but IgE does ... frequently increased in those with atopy but serum IgE does not rise acutely during an asthmatic attack.

Secretory component is present in (A) IgA (B) IgG (C) IgM (D) All of these

Description : Secretory component is present in (A) IgA (B) IgG (C) IgM (D) All of these

Last Answer : Answer : A

Immediate allergy reaction (type I allergic reaction) is: a) An allergic or immune response that begins within a period lasting from a few minutes to about an hour after exposure to an antigen to which the individual has been sensitized b) An allergic reaction that becomes apparent only hours after contact c) An allergic reaction that results from the formation of antigen-antibody complexes between a foreign antigen and IgM or IgG immunoglobulins. d) An allergic reaction that is due to the presence of elevated levels of antigen-antibody complexes that cause tissue damage e) It occurs during blood transfusion reactions and in hemolytic disease of the newborn.

Description : Immediate allergy reaction (type I allergic reaction) is: a) An allergic or immune response that begins within a period lasting from a few minutes to about an hour after exposure to an ... cause tissue damage e) It occurs during blood transfusion reactions and in hemolytic disease of the newborn.

Last Answer : Ans: A

What type of immune cell may control IgE-mediated hypersensitivities? a. Suppressor T cells b. Plasma cells c. Cytotoxic T cells d. Neutrophils

Description : What type of immune cell may control IgE-mediated hypersensitivities? a. Suppressor T cells b. Plasma cells c. Cytotoxic T cells d. Neutrophils

Last Answer : a. Suppressor T cells

Atopic allergic disorders are characterized by a) a hereditary predisposition. Atopic allergic disorders are characterized by a hereditary predisposition and production of a local reaction to IgE antibodies produced in response to common environmental allergens.

Description : Atopic allergic disorders are characterized by a) a hereditary predisposition. Atopic allergic disorders are characterized by a hereditary predisposition and production of a local reaction to IgE ... of a local reaction to IgE antibodies produced in response to common environmental allergens.

Last Answer : a) a hereditary predisposition. Atopic allergic disorders are characterized by a hereditary predisposition and production of a local reaction to IgE antibodies produced in response to common environmental allergens.

Heavy chains in IgD are of following type: (A) Alpha (B) Gamma (C) Delta (D) Epsilon

Description : Heavy chains in IgD are of following type: (A) Alpha (B) Gamma (C) Delta (D) Epsilon

Last Answer : Answer : C

IgE has a tendency to attach to (A) Basophils (B) Mast cells (C) Both (A) and (B) (D) None of these

Description : IgE has a tendency to attach to (A) Basophils (B) Mast cells (C) Both (A) and (B) (D) None of these

Last Answer : Answer : C

The plasma concentration of IgA is (A) 1–5 mg/dl (B) 40–200 mg/dl (C) 60–500 mg/dl (D) 700–1,500 mg/dl

Description : The plasma concentration of IgA is (A) 1–5 mg/dl (B) 40–200 mg/dl (C) 60–500 mg/dl (D) 700–1,500 mg/dl

Last Answer : Answer : C

How to get rid of Cat dander, so that somebody allergic to cat's wouldn't get any allergic reactions?

Description : How to get rid of Cat dander, so that somebody allergic to cat's wouldn't get any allergic reactions?

Last Answer : The thing that is really bad with cats and cat allergies and cat smells is their hair. There's a product called the Furminator that you can get for cats or dogs (specific kind for each) that ... core. Googling for it brings up images of pets with a-pets-worth-of-recently-removed-excess-hair nearby.

Does anybody know any home remedies for allergic reactions?

Description : Does anybody know any home remedies for allergic reactions?

Last Answer : answer:lay off the crack? when you say you itch every night do you mean every night like just at night time or when your in bed? If its in bed you may be allergic to dust mites or something along those lines. Try washing your sheets/blankets or better yet get a hypo allergic sheets/pillow covers.

do gunnera have properties that cause allergic reactions?

Description : do gunnera have properties that cause allergic reactions?

Last Answer : Need Answer

Which is produced during allergic reactions? -Do You Know?

Description : Which is produced during allergic reactions? -Do You Know?

Last Answer : answer:

Are you not worried about the allergic reactions if having the vaccine against COVID-19?

Description : Are you not worried about the allergic reactions if having the vaccine against COVID-19?

Last Answer : Current covid vaccines have to go through a lot of testing. Tests on different blood types Tests on different people with varying metabolism And that's not all you may also have to consider the ... say brazil and their environment condition. So the vaccine needs year worth of testing in that case.

Assertion . Mast cells in human body release excessive amount of inflammatory chemicals which cause allergic reactions. Reason . Allergens in the envi

Description : Assertion . Mast cells in human body release excessive amount of inflammatory chemicals which cause allergic reactions. Reason . Allergens in the envi

Last Answer : Assertion . Mast cells in human body release excessive amount of inflammatory chemicals which cause ... If both the assertion and reason are false

Assertion : Histamine is related with allergic and inflamatory reactions Reason : Histamine is a vasodilator

Description : Assertion : Histamine is related with allergic and inflamatory reactions Reason : Histamine is a vasodilator

Last Answer : Assertion : Histamine is related with allergic and inflamatory reactions Reason : Histamine is a ... If both the assertion and reason are false

Which WBCs resist infections and are also associated with allergic reactions `:-`

Description : Which WBCs resist infections and are also associated with allergic reactions `:-`

Last Answer : Which WBCs resist infections and are also associated with allergic reactions `:-` A. Lymphocytes B. Neutrophils C. Eosinophils D. Monocytes

Allergic reactions?

Description : Allergic reactions?

Last Answer : DefinitionAllergic reactions are sensitivities to substances, called allergens, that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract. They can be inhaled into the ... in people who have a family history of allergies.Substances that don't bother most peop

Fibrinolytic therapy is based on activation of plasminogen, the inactive proteolytic enzyme of plasma that binds to fibrin during the formation of thrombosis. Activation of plasminogen to plasmin results in selective thrombolysis at the fibrin clot surface. Which of the following statement(s) is/are true concerning agents used in thrombolytic therapy? a. Streptokinase is a bacterial protein which is antigenic in humans, resulting in allergic reactions in up to l5% of cases b. Tissue plasminogen activator acts directly on plasmin without an intermediate drug–plasmin complex c. The half-life of urokinase, streptokinase, and TPA all exceed 30 minutes d. Streptokinase is significantly cheaper than urokinase or TPA

Description : Fibrinolytic therapy is based on activation of plasminogen, the inactive proteolytic enzyme of plasma that binds to fibrin during the formation of thrombosis. Activation of plasminogen to plasmin results ... TPA all exceed 30 minutes d. Streptokinase is significantly cheaper than urokinase or TPA

Last Answer : Answer: a, b, d Streptokinase is a bacterial protein produced by group C b-hemolytic streptococci. It is therefore antigenic in humans and can be associated with allergic reaction in ... one agent over the other. Streptokinase however, is markedly less expensive than either urokinase or TPA

The most common cause of fatal transfusion reactions is: A. An allergic reaction. B. An anaphylactoid reaction. C. A clerical error. D. An acute bacterial infection transmitted in blood.

Description : The most common cause of fatal transfusion reactions is: A. An allergic reaction. B. An anaphylactoid reaction. C. A clerical error. D. An acute bacterial infection transmitted in blood.

Last Answer : Answer: C DISCUSSION: The most common cause of fatalities related to transfusion reactions result from ABO-incompatible transfusion related to clerical error. Most such reactions occur if a ... with platelet concentrates maintained at or near room temperature. Fortunately, such reactions are rare

H1 antihistaminics are beneficial in (a) All types of allergic disorders (b) Certain type I allergic reactions only (c) Anaphylactic shock(d) Bronchial asthma

Description : H1 antihistaminics are beneficial in (a) All types of allergic disorders (b) Certain type I allergic reactions only (c) Anaphylactic shock(d) Bronchial asthma

Last Answer : Ans: B

An advantge of betamethasone acetate over betamethasone sodium phosphate is (a) Fewer allergic reactions (b) Prompter action (c) More sustained action (d) Greater solubility (e) There is no advantage

Description : An advantge of betamethasone acetate over betamethasone sodium phosphate is (a) Fewer allergic reactions (b) Prompter action (c) More sustained action (d) Greater solubility (e) There is no advantage

Last Answer : Ans: C

Where do most allergic reactions occur ?

Description : Where do most allergic reactions occur ?

Last Answer : Most of them occur on mucous membrane. Allergens enter the body by the process of inhalation or ingestion.

Which is produced during allergic reactions?

Description : Which is produced during allergic reactions?

Last Answer : Histamine

Allergic reactions are mediated by (A) IgA (B) IgG (C) IgD (D) IgE

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