Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Diagnostic Testing > Delayed Type Hypersensitivity Skin Testing > Flashcards

Delayed Type Hypersensitivity Skin Testing Flashcards

1
Q

What is DTH?

A

It is used to evaluate the functionality of the Immune system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

On the Gell and Combs scale, DTH is what type?

A

Type IV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

It is the reduction or lack of an immune response to a specific antigen

A

Anergy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The patient does not respond to any of the antigens

A

Anergic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what is the procedure used to determine a persons immune response?

A

Anergy Panel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the indications for DTH?

A
  • Evaluate the immunity of patients with possible immune deficiencies
  • Assess the immuno-competency of malnourished patients
  • To assess patients for possible chemotherapy
  • HIV staging
  • Pre and Post surgery patients to assess level of infection risk
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

When administering DTH what is the first strength used?

A

PPD - 5 TU

Candida - 20 PNU

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

When administering DTH what is the second strength used?

A

PPD - 5 TU

Candida - 200 PNU

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

When do the reactions for DTH start?

A

24 hours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

When do the reactions for DTH peak?

A

48 hours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

When do the reactions for DTH subside?

A

72 hours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What dose is administered for all DTH antigens?

A

0.1 ml

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

When screening a patient for DTH placement what questions are you going to ask?

A
  • Have you ever had a past positive reaction
  • Is there a history of BCG Vaccine
  • Can the patient return in 48-72 hours
  • Are they taking any steroids or radiation therapy
  • any live vaccines in the past 28 days
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What patient instructions are given after the placement of DTH?

A

Absolutely NO:

  • Scratching/ Rubbing/ Agitating
  • Lotions/ Soaps/ Oils
  • Colognes/ perfumes
  • Bandages
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

All readings for DTH are measured how?

A

Induration X Induration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

When reading DTH what is considered a positive reaction?

A

5mm or greater

17
Q

When reading DTH what is the one thing that must be done regardless if there is visible reaction?

A

Palpation

18
Q

What would cause a false negative reaction for DTH testing?

A
  • Too old/young
  • No Prior Exposure
  • Active Viral Infection
  • Solutions are Weak or Out-dated
  • Improper Placement
  • Recent Live Viruses
19
Q

What would cause a false positive reaction for DTH testing ?

A
  • Scratching/ Rubbing/ Agitating
  • Lotions/ Soaps/ Oils
  • Colognes/ perfumes
  • wrong diluent used when preparing the antigen
20
Q

Healthy people will normally react to how many of the DTH antigens?

A

At least one of the two

21
Q

Through out your body you have a large amount of __________ that are able to recognize many different antigen in your body

A

T-Cells

22
Q

When placing DTH antigens what is the minimum distance they should be placed apart from each other

A

at least 5 cm

Diagnostic Testing (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions