אלרגיה Flashcards

(34 cards)

1
Q

what are the 2 major risks for asthma?

A
  • parents with asthma
  • Allergy (atopic kids)
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2
Q

How to dgx Asthma?

A

FEV1/FVC < 0.8
then:
metacholine test with decrease FEV1 < 20%
after:
Bronchodilators improvment of FEV1 in > 12% or > 200ml

**Diagnostic **Bronchodilators improvment of FEV1 in > 12% or > 200ml

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3
Q

How do we Dgx Exresice induce asthma?

A

מבחן תיגר מאמץ
see if there is decrease > 15% in FEV1

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4
Q

What is the changes expected to see in peak expiratory flow in asthma?

btwn morning and evening

A

changes > 20% from morning to evening
are typical to asthma

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5
Q

Which test can assist is Dgx of allergic asthma?

A

FeNO- NO measurment in inspirium

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6
Q

איזו תרופה ניתן לשקול בחולים עם אסטמה אלרגית מעל גיל 12?

A

omalizumab- step 5

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7
Q

איזו תרופה ניתן לשקול בחולים עם אסתמה אאוזינופילית מעל גיל 12

A

Mepolizumab- step 6

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8
Q

What are the medications for the 6 step approch of asthma menegment?

A
  1. SABA
  2. low dose ICS
  3. Medium dose ICS or Low dose ICS + LABA/LATRA
  4. medium dose ICS + LABA /LTRA / theophylline (for age > 4 )
  5. High dose ICS+ LABA /LTRA / theophylline age > 6 - consider omalizumab if allergic
  6. High dose ICS+ LABA /LTRA / theophylline + OCS + age > 12 - consider mepolizumab if eosinophils or omalizumab

from Step 4 only 0-4 could change LABA in LTRA

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9
Q

מה הגישה באסתמה מאוזנת למשך יותר מ-3 חודשים

A

לשקול ירידה בשלב הטיפול תחת מעקב צמוד

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10
Q

Which conditions are a/w asthma?

A

GERD
renitis
sinusitis

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11
Q

What will be the blood gases in acute severe episode of asthma?

A

PaO2 < 60
PCO2 > 42 - tiredness of breathing muscles

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12
Q

What we will hear in life threating episode of asthma excacervation?

A

Abscent of wheezing due to no air coming in

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13
Q

inital tx of acute asthma attack in ER?

A

SABA every 20min for 1 hr > OCS > epinephrin IM > monitor + hydration

if no response- add SABA impratropium > epinephrin IM

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14
Q

What is a possible side effect of reccurent use of SABA with eleveted dose?

how can we prevent it?

A

Hypoxemia- due to flow of blood in obstucted areas in the lung = flow/ perfusion mismtach

**prevention- ** O2 supply at least 20 min after Tx with SABA

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15
Q

Risk factor for allergic rhinitis?

A

family Hx of atopia
serum IgE > 100 before age of 6

Dgx- תבחין עורי למציאת האלרגן

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16
Q

What are eleveted pruritic lesions that tend to migrate?

17
Q

What is the lesion seen in the picture?

A

Urticaria

Tx- anti histamin against receptor 1

18
Q

Which type of urticaria is presented after exresice, sweatinh or hot shower?

when they will pass?

A

Chollenergic urticaria

might also present with tearing, wheezing, and even syncope

Tx- anti histamin against receptor 1

19
Q

Which Abs are higly a/w chronic autoimmune urticaria?

A

anti- thyorid ab (in normal thyroid function)

Tx- anti histamin against receptor 1

20
Q

A girl after running competiton is presented with prurtus, angioedema , urticaria , wheezing and hypotension.

what is most likely the dgx?

A

**Exresice induce anapylasxis
**

think about presentation anaphylxis but with Hx of recent exresice

Tx- anti histamin against receptor 1

21
Q

how is this reaction call?

A

Dermatographism- skin reaction after putting pressure on the skin

22
Q

Herditery angioedema

which enzyme is missing, what is a strong risk ?
and Tx?

A

C1 esterase inhibitor def.
risk- larynx edema&raquo_space; need to intubate
Tx- PPx and in episodes with recombinant C1 enzyme. EACA

23
Q

Galatosemia

which enzyme is def?
Tx?

A

GALT enzyme
Tx- based soy formula

24
Q

תינוק בן מספר ימים מגיע למיון עם היפוגליקמיה, קטרקט דו”צ, צהבת, הפטוספלנומגליה וספסיס מ-אי קולי מגיע למיון. בבדיקת השתן חומרים מחזרים

איזו מחלה יש לתינוק בסבירות גבוהה?

A

גלקטוזמיה- GALT def.

Also hyperchloremic MA, Excessive brusing

25
מהי השיטה הרגישה ביותר לזיהוי אלרגן ספיציפי ל- IgE?
תבחין עורי (הזרקה מקומית ואחרי 15 דק' נמדדת התגובה)- Wheal and flare
26
באיזה מקרים נעדיף תבחין סרום ל- IgE (ELISA)
באנשים שישנה העדפה להימנע מדקירת העור- דרמיטיטיס קשה או דרמטוגרפיזם או אנשים שאינם יכולים להפסיק טיפול באנטי-היסטמינים **לצורך אבחנה צריך לשלב תמונה קלינית.** ## Footnote הבדיקה מעדיה רק על ריגוש אל לא מספקת לאבחנת אלרגיה
27
Hypersensetivty reactions which cells or Ig are mediators in each type (I-IV)?
**ACID** I- **Allergic** >> IgE > basophils and mast. rapid reaction- Skin test is Dgx tool II- **Cytotoxic**- IgM or IgG. Hemolytic reaction, goospasture III- **Immune complex**- IgM, IgG. immune complexs lies in blood vessels wall and activate complement and PMN IV- **Delayed** T lymp. Contact Dermatitis
28
Def. of anaplyaxis?
Severe allergy reaction involving > 2 sstems
29
Which type of hypersensetiviy is serum sickness?
III- immune complex
30
Tx for anaphylaxis?
Epinephrine IM 2nd line- anti-histamines and steorids
31
what is the reccurent rate of anaphylaxis shock?
90% of reccurence will be within4 hours. לכן מומלצת השגחה של 4 שעות במיון
32
Clinical menefstation of serum sickness?
symptoms onset 7-21 days after vaccine or forgein serum: fever, arthralgia, lymphadenpathy, skin involvment
33
What we will se in biopsy of serum sickness?
immune complex *(type III)* with IgM / IgG + complement in serum: high ESR low complement levels
34
Tx and prognosis of Serum sickness
reslove within 2 wks. if need supportive care. in severe cases- steorids