All categories

2 years ago

After first exposure to an antigen, about how long does it take for antibodies to reach a detectable level?

2 answers:

6 0

After first exposure to an antigen, it can take about three weeks for antibodies to reach a detectable level. The body will react to disease by creating antibodies and testing their effectiveness against the unknown antigen.

Antibodies are the body's way of fighting off foreign threats. Also known as immunoglobulin, they detect and attack pathogenic bacteria and viruses. These antibodies detect a protein that is unique to the surface of the pathogen called the antigen.

At times, we can see an increase in antibodies for one disease, for example, <em>Lyme disease</em>, in the presence of <em><u>non-Lyme disease antigens.</u></em> This is often due to antigenic variation, which is a method used by pathogens to mask their respective antigens. There are also general use antibodies that will increase in reaction to any pathogen.

As with any illness, a patient who receives treatment sooner will fare better than those whose treatment is delayed. This is due to the fact that earlier treatment with antibiotics will allow the body to fight off the infection before the bacteria can reproduce further.

After the first immune response, antigen-specific antibodies will remain for some time to provide the body with "immunity" to the pathogen, while <u>general-purpose antibodies will return to a base value. </u>

To learn more visit:

brainly.com/question/7597406?referrer=searchResults

nexus9112 [7]2 years ago

4 0

Answer:

hiiii

Explanation:

You might be interested in

What is the process by which scientist "grade" the work of other scientists before it is published?

frutty [35]

This is called peer review. A peer is a person of at least equal standing in the area of intellect to the person being reviewed.

4 0

3 years ago

What process provides a vital connection between the sun and the energy needs of living systems

Olin [163]

The answer is photosynthesis. <span />

6 0

3 years ago

Read 2 more answers

A client has undergone a left hemicolectomy for bowel cancer. Which activities prevent the occurrence of postoperative pneumonia

Hunter-Best [27]

The measurable activities like Coughing, breathing deeply, frequent repositioning, and using an incentive spirometer are for preventing postoperative pneumonia. Hence, Option C is correct.

<h3></h3><h3>What is postoperative pneumonia?</h3>

Pneumonia is caused by Streptococcus pneumoniae and Haemophilus influenzae leads to infection of the alveoli of lungs.

This type of pneumonia is a rare medical condition happens after local anesthesia has been given to a patient.

The primary causes are the amount of anesthesia given, poor handling of chemicals, the type of anesthesia given to the patient.

To prevent the occurrence of postoperative pneumonia are medicating the patient and use of incentive spirometer. Hence, Option C is correct.

Learn more about pneumonia, here:

brainly.com/question/15159868

#SPJ4

Your question was incomplete, so the probable question was

A client has undergone a left hemicolectomy for bowel cancer. Which activities prevent the occurrence of postoperative pneumonia in this client?

A. Administering oxygen, coughing, breathing deeply, and maintaining bed rest

B. Coughing, breathing deeply, maintaining bed rest, and using anincentive spirometer

C. Coughing, breathing deeply, frequent repositioning, and using anincentive spirometer

D. Administering pain medications, frequent repositioning, andlimiting fluid intake

8 0

1 year ago

Which of the following statements BEST describes the products of the photosynthesis process?

guajiro [1.7K]

Answer:

C - They are also the starting material (reactants) of Cellular Respiration.

Explanation:

Hope this Helps!!

4 0

3 years ago

Give an example of a chemical adaptation. State the name of the organism and describe the adaptation. Discuss how this adaptatio

lesya [120]

Answer:

Answer is explained below;

Explanation:

Adaptation is referred to as a change or mutation that occurs in an organism that helps it to survive in its environment. The three types of adaptations include structural or morphological, physiological or chemical and behavioral adaptations.

Physiological or chemical adaptations.

Physiological or chemical adaptations are adaptations that do not show from the outside and are based on the body chemistry and metabolism of organisms which enable them to regulate their body functions and perform certain peculiar functions such as defense mechanisms in order to survive in its environment. Examples include the toxins released by certain plant leaves to repel herbivores, compounds present in the saliva of the mosquito to prevent blood coagulation, the more efficient kidneys of desert animals, etc.

For example, in certain marine organisms that are sedentary or move slowly such as starfish or sea stars, the chemical adaptation helps them to protect from predators. They excrete some chemicals from their skin as a defense mechanism that is harmful to the predators.

Whales are marine mammals that migrate to large distances and spend most of their time in arctic, tropical or temperate waters. In order to survive these temperature changes, they maintain a constant body temperature that is not dependent on the surrounding water. So, they are called endothermic or warm-blooded animals.

Structural (morphological) adaptations.

A change that occurs in the appearance or morphology (structure) of an organism in order to survive in its environment is known as structural adaptations. Examples of structural adaptations include the sharp eyesight of predatory birds, small ears of Arctic foxes to retain body heat, corky bark of trees to protect from wildfires, etc.

Behavioral adaptations

Behavioral adaptations are adaptations that affect the behavior or action of an organism in order to survive in its environment. Examples include birds migrating to warmer winter climates, hibernation of bears to escape the cold, desert animals active at night during hot summer weather, etc.

3 0

3 years ago