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Lab Part 2 > Flu > Flashcards

Flu Flashcards

1
Q

How is influenza spread?

A

coughing and sneezing of aerosolized droplets containing live virus.

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2
Q

What is more common and more serious?

A

Influenza A

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3
Q

When is influenza diagnosed best?

A

First 2-3 days

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4
Q

Symptoms of influenza?

A
  • Fever or feeling feverish/chills
  • Cough
  • Sore throat
  • Runny or stuffy nose
  • Muscle or body aches
  • Headaches
  • Fatigue (tiredness)
  • Vomiting and diarrhea, more common in children than adults.
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5
Q

What are the benefits of using antivirals within the first 48 hours annnd performing rapid Influenza A and B test?

A
  • Reduce costs of ancillary diagnostic procedures
  • Reduce healthcare costs
  • Decrease unnecessary antibiotic use
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6
Q

Are the rapid influenza test vials pre-filled?

A

Yes

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7
Q

When the swab to be tested in placed in the vial, how do you rotate the swab?

A

Vigorously 3 times

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8
Q

When do you have to read the results from the test in the window after closing the device?

A

15 minutes

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9
Q

Are results accurate before or after the 15 minutes?

A

Nope

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10
Q

How do you add drops to the WHITE sample pad?

A

SLOWLY (drop by drop) add entire contents of pipette (100 μl) to the MIDDLE of this pad such that all of the sample volume absorbs into this pad. DO NOT add sample to the pink/purple colored pad.

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11
Q

Monoclonal antibodies

A

Sure

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12
Q

Nasal washes held at what temp and time?

A

2-8 C for up to 24 hours prior to testing the rapid influenza test kit

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13
Q

What is a negative sample? BLUE Control Line in the BOTTOM THIRD of the window turns a pink-to-purple color.

A

No other line appears

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14
Q

What is a FLU A positive sample?

A
  • BLUE Control Line turns a pink-to- purple color

* second pink-to-purple Sample Line MIDDLE THIRD of the window

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15
Q

What is a FLU B positive sample?

A
  • BLUE Control Line turns a pink-to-purple color

* second pink-to-purple Sample TOP THIRD of the window

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16
Q

What is an INVALID test?

A
  • Control Line remains BLUE or is not present at all, whether a Sample Line(s) is present or not.
17
Q

How do you repeat invalid test results?

A

With a new test device or call tech support

18
Q

What is the report for Positive Flu A?

A

Positive for Flu A protein antigen

19
Q

What is the report for Positive Flu B?

A

Positive for Flu B protein antigen

20
Q

What is the report for Negative?

A

Negative for Flu A and Flu B protein antigens

21
Q

What may cause false positive?

A

When disease prevalence in the community is low (beginning and end of the influenza seasons)

22
Q

What may cause false-negative?

A

When disease prevalence is high in the community

23
Q

What can help with minimizes false results?

A
  • Collect specimens as early in the illness as possible (within 4-5 days).
  • Follow manufacturer’s instructions, including handling of specimens.
24
Q

Does a negative test result exclude infection winth Influenza A and B?

A

No, test should be used in conjunction with clinical findings

25
Q

Is additional testing required to differentiate any specific influenza A and B subtypes or strains.?

A

Yes

26
Q

What does test performance depend on?

A

amount of antigens in the specimen

27
Q

Another name for rapid influenza kit?

A

Monoclonal Antibody

28
Q

What part of body does flu infect?

A

Upper and lower respiratory

29
Q

How is it spread?

A

Droplets

30
Q

Which is more common and illness more serious?

A

A

31
Q

When diagnosed?

A

2-3 days

32
Q

48 hours?

A

Antivirals

33
Q

How many times is sample mixed?

A

3 x vigourously ads squeezed off at the top

34
Q

How much is expelled?

A

100uL (all)

35
Q

When is it read?

A

15 minutes exactly

36
Q

What provides an important baseline of a patient’s basic physiology?

A

Metabolic panel

37
Q

What is analyzed for metabolic panel?

A
  • Sodium
  • Urea Nitrogen
  • Calcium
  • CO2
  • Chloride
  • Creatine
  • potassium
  • Magnesium
  • Phosphorous

Lab Part 2 (13 decks)

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