1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mamaluj [8]
3 years ago
13

When testing a person's skin for allergens using patch testing, tiny amounts of allergens are placed on stainless steel discs an

d applied to the back. How many hours later is the skin under the discs assessed for reaction?
Biology
2 answers:
Airida [17]3 years ago
7 0

Answer:

48 hours

Explanation:

Patch testing is a method to test the allergic reactions called contact dermatitis caused by the allergens found in the environment the patient is surrounded by like home allergens or work allergens.

To perform the test, the allergens are placed on the metal discs which are pasted on the back of the person with hypoallergenic tape.

Then the discs are allowed to be pasted on the back of the person for about 2 days or 48 hours after which the skin is examined for the allergy reactions caused by an allergen in the form of inflammatory response or hypersensitivity.

Thus, 48 hours is the correct answer.

Jet001 [13]3 years ago
7 0

Answer:

The correct answer is - 48 hours.

Explanation:

Skin patch testing is the process or the testing method that is used to detect allergic dermatitis an individual person could be affected of from the atmosphere around him. In this test the patch with substances to test, in a small discs to skin of a person.

The test substances to the skin under the disc that are then left in place for 48 hours. The skin is then assessed a further 48 hours later for any allergic reaction.

Thus, the correct answer is - 48 hours.

You might be interested in
In Hawaii, new land forms when lava erupts from Kīlauea volcano and hardens. The new land is without any living things. The firs
Simora [160]

Answer:

Primary succession

Explanation:

  • The new landforms that are devoid of any vegetation have barren and rocky environment are colonized by the first plant species like grass and moss is called as primary succession which changes with time and occurs on new lands that not colonized yet and later on gets colonized a variety of organisms.
5 0
3 years ago
En la maduración del cerebro que inicia desde la nuca hasta la frente la última área que madura es la corteza prefrontal que ayu
irga5000 [103]

Answer:123456Which statement best explains the main conflict and resolution in "How a Cat Played Robinson Crusoe"?

The cat is abandoned on an island. She adapts to the wilderness and survives until her family returns.

The family worries about the cat. They are overjoyed to discover that the cat is alive when they return.

The cat faces many adversaries, including rats and owls. However, she persists and is able to overcome each.

The cat learns how to hunt. She does not starve to death on the island.

Explanation:

6 0
2 years ago
HElp due now giving brainlist
Arturiano [62]

The answer is decomposer

4 0
3 years ago
Help with number nine, and explain why please
damaskus [11]
The answer is Carbohydrates
Sugar and carbohydrates are broken down into smaller versions called glucose. All cells in the human body depend on glucose. This makes carbohydrates the body's number one energy source. The brain and nervous system run directly off glucose.
5 0
2 years ago
Similar to most amoebozoans, the forams and the radiolarians also have pseudopods, as do some of the white blood cells of animal
sweet-ann [11.9K]
I believe it would be polyphyletic.
Polyphyletic groups are formed when two lineages convergently evolve similar character states. Organisms classified into the same polyphyletic group share phenetic homoplasies as opposed to homologies. The key difference between paraphyletic and polyphyletic groups is that paraphyletic contain their common ancestor, whereas polyphyletic groups do not. 

3 0
3 years ago
Other questions:
  • How are amoebas and humans similar?
    8·1 answer
  • When comparing the genetic characteristics between embryonic and adult stem cells,?
    13·1 answer
  • State two principles of treatment of a disease
    7·1 answer
  • When a clinician examines the speech production of adults with aphasia, it is important to rule out:a. Apraxia of speech b. Dysa
    13·1 answer
  • What most likely happens when a plate under the ocean is forced beneath another plate?
    13·1 answer
  • HELPPPPPPPPPPPPPPPPPPPPPPPP
    14·1 answer
  • 1. What is the relationship among chromosomes, genes, and DNA?
    5·2 answers
  • Which of the following best explains the phrase "survival of the fittest" in terms of evolution by natural selection? (1 point)
    11·1 answer
  • Marissa is conducting an experiment in which she needs to test for acids in water. She is using a substance she believes will tu
    12·1 answer
  • Eukaryotes that reproduce through reproduction require two cells to contribute genetic material for the production of the next g
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!