Pharmacogenomics
Is the study of how genetic variations influence and individual response to medications. It helps identify which medications may be most effective or pose the highest risk based on the patient’s genetic makeup.
Area under the curve
Bioavailability of a medication
Pharmacokinetics
Is the study of how the body affects a drug, including absorption, distribution metabolism and excretion. It helps refers to how a medication is processed in an individual.
Half life
Half life is how much time it takes a medication to decrease its concentration in the body by 50%
Minimum inhibitory concentration
No concentration of an antibiotic needed to inhibit bacterial growth after overnight incubation
INR goal for a patient with stroke, A.Fib, DVT
2.0 to 3.0
INR goal for prosthetic mitral valve
2.5 to 3.5
Concept of bio availability
Medication is absorbed and used by the body
Main organs of bio transformation
Liver
First pass metabolism
Medication’s administered orally must first be metabolize in the liver
CYP450 inducer
Medication that increases the clearance of other medication’s
CYP450 inhibitor
Medication that decreases the clearance of other medication’s
Adverse effect of Nondihydropyridine CCB (Verapami, Diltiazem)
Constipation
What type of medication is Enalapril?
Angiotensin-converting enzyme (ACE) inhibitor
ACE inhibitors are commonly used to treat high blood pressure and heart failure.
A common side effect of ACE inhibitors is __________.
dry cough
This side effect may occur a few hours after the first dose or within weeks to months.
If a patient has a history of asthma or chronic obstructive pulmonary disease, which medication might cause bronchospasm?
Atenolol
Atenolol is a beta-blocker that can lead to bronchospasm in susceptible individuals.
What physical exam finding would likely reveal if atenolol is causing bronchospasm?
Wheezing
Wheezing is a common sign of bronchospasm and can be assessed during a physical examination.
List the adverse effects of amlodipine.
Amlodipine is a dihydropyridine calcium channel blocker used for hypertension.
What are the potential adverse effects of diltiazem?
Diltiazem is a nondihydropyridine calcium channel blocker that can affect heart function.
What is the first step to take for a patient at risk of developing a prolonged QT interval due to macrolides and calcium channel blockers?
A. Perform an EKG
A timely EKG is essential for diagnosis of prolonged QT interval, which can lead to torsades de pointes and ventricular tachycardia.
True or false: An echocardiogram is the priority test after a patient is diagnosed with a prolonged QT interval.
FALSE
The priority is to perform an EKG, while an echocardiogram may be helpful after diagnosis to evaluate heart function.
What should be obtained alongside the EKG for a patient with a prolonged QT interval?
Serum electrolytes are important for diagnosis, and a chest x-ray may rule out other conditions like pneumonia.
In the context of atrial fibrillation, what condition may prompt evaluation of thyroid-stimulating hormone?
Thyroid disease
Other historical and physical exam findings would indicate the need for thyroid evaluation.
NSAIDs
contraindicated in patients who are taking anticoagulant, even topical diclofenac