What is the main difference between a food allergy and a food intolerance?
Food allergy is IgE mediated
Food allergies are the main reason for _____ presenting in the ED
anaphylaxis
What are the MCC of food allergies in adults?
fish/seafood
peanuts/tree nuts
Food allergy or intolerance?
Allergy
(intolerance you would just have sxs like D, bloating, abd cramping,etc)
How do you tx food allergies (3)?
Lowest rate of lactose intolerance in what 2 racial/ethnic groups?
European and European American
Highest rate of lactose intolerance in what 5 racial/ethnic groups?
Lactose intolerance is uncommon under what age?
6
T/F: prevalence of lactose intolerance decreases with age
FALSE
prevalence increases with age
What causes lactose intolerance
Deficiency of lactase enzyme or less efficient lactase enzyme
What are the main causes of lactose malabsorption?
Primary (developmental, congenital)
Secondary (Celiacs, IBD, etc)
Clinical presentation of what?
*symptoms affected by diet*
Lactose intolerance
What are the 3 components of diagnosing lactose intolerance
(only need 1 and 2 to diagnose)
How do you treat lactose intolerance? (3)
Definition of Glucose-6-phosphate dehydrogenase (G6PD) deficiency:
Genetic defect in G6PD, a RBC enzyme that generates ______ and protects RBCs from _____ injury
Genetic defect in G6PD, a RBC enzyme that generates NADPH and protects RBCs from oxidative injury
Is G6PD deficiency genetic?
yes.
X-linked
G6PD deficiency is associated with what?
hemolytic anemia
Clinical presentation of which condition?
G6PD deficiency
Which condition is usually asymptomatic until a trigger (meds, food, acute illness) causes acute hemolysis
G6PD deficiency
What type of anemia is seen in G6PD deficiency?
normochromic, normocytic
What 2 things are seen on peripheral smear in G6PD deficiency?
“bite cells”
Heniz bodies
Will the anemia seen in G6PD deficiency resolve?
Yes. Spontaneous resolution and reversal of anemia
(anemia stimulates erythropoiesis, younger RBCs can withstand the oxidative stress so get resolution)
The following meds carry the risk of causing clinical hemolysis in persons with which condition?
G6PD deficiency
How do you treat G6PD deficiency? (4)
_2. Removal of offending agent*_
_3. Hydration*_