feb 21st Flashcards
What is the mnemonic for SSRI’s?
Flashback Paralyze Senior Citizens Fluoxetine Paroxetine Sertraline Citalopram
TCA’s can cause Tri C’s which means what?
Convulsions
Cardiotoxicity
Coma
How do TCA cause cardiotoxicity?
due to Na+ channel inhibition
how do you treat arrhythmias associated with TCA?
Sodium bicarb
NaHCo3
What has more affects of anticholinergics? TCA’s or SSRI’s?
TCA’s
Pt has CF and they are 6 years old what is the most likely cause of their recurrent pneumonia?
Staph
- after 21 is pseudomonas
What are the recommended treatments for pseudomonas infections?
Aminoglycosides
Flouroquinolones
Piperacillin
What are the aminoglycosides?
Neomycin Streptomycin Gentimicin Tobramycin Amikacin
What is a common cause of hyperventilation in respiratory alkalosis?
Panic attacks
What is respiratory and metabolic alkalosis in terms of numbers?
<36 mmHg Co2 for respiratory
>28 bicarb For metabolic
Pts has dementia and loads of loose stools. Where should the rash be? DX
Casal necklace
Gloving/sun exposed limbs
-Pellegra
-
What is Hartnup disease?
Defect in neutral AA transporters in PCT and Enterocytes
- Leads to def in tryptophan
- Leads to unhappiness and pellegra
How does one treat harnup disease?
high protein diet and nicotinic acid
What sort of foods is niacin found/
Beef Chicken Nuts Legumes Fish
What are the amides local anesthetics?
They have two I’s
Lidocaine
Bupivacaine
Mepivicaine
What are the esters?
They dont have two I's Cocaine Procaine Tetracaine Benzocaine
Which one the amine local anesthetics causes severe cardiotoxicity?
Bupivacaine
In first order kinetics how many half lives does it take to reach steady state?
4-5
How many half lives does it take to reach 90% steady state?
3.3
How does one calculate t1/2?
.7*Vd/Clearance
What is steady state of a drug?
When rate of excretion is equal to the rate of input
What cancers does methotrexate treat?
Leukemias
Choriocarcinoma
Lymphomas
Sarcomas
Pt presents with mouth sores. She has a liposarcoma. She has myelosuppression, icterus and sores in her mouth. What drug is she on and what is the treatment for her sx’s?
Methotrexate
- Leucovorin
What is leucovorin?
Reduced folic acid
- Folinic acid