Pharmacology Flashcards
What medication is a contraindication for a patient with gout?
Thiazide diuretic INCREASE uric acid levels
What are PharmaKinetics changes in the older patient populations?
- Increase in fat to water ratios
2. Decrease in albumin, plasma protein, liver blood flow, liver size, CYP450 enzyme pathways, and GFR.
A NP knows that a certain drug slows down drug clearance. What does the NP look for?
Drug overdose - Over medication
A NP finds NSAIDS on the medication profile for a patient. A NP knows this will affects patients with CKD by
reducing the renal blood flow and will damage kidneys further.
A NP finds ACEI on the medication profile for a patient. A NP knows this will affects patients with CKD by
increase risk of hyperkalemia
A NP finds WARFARIN on the medication profile for a patient. A NP knows this will affects patients with CKD by
Increase the risk of over-coagulation (INR>4).
Severe CKD and ESRD at risk for hemorrhagic complications.
A NP finds LITHIUM on the medication profile for a patient. A NP knows this will affects patients with CKD by
Increase risk for kidney injury
A NP finds contrast dye on the medication profile for a patient. A NP knows this will affects patients with CKD by
Injure kidneys
A NP finds potassium-sparing diuretics on the medication profile for a patient. A NP knows this will affects patients with CKD by
increase risk for hyperkalemia
A NP finds sodium- phosphate (used of bowel prep) on the medication profile for a patient. A NP knows this will affects patients with CKD by
FDA 2019 WARNING
may cause sudden loss of kidney function as well as blood mineral disturbances.
Drugs that slow down drug clearance, will increase risk for drug overdose. Which drugs inhibit the CYP450 system?
- Macrolides
- Antifungals
- Phenytoin
- Cimetidine
- Citalopram
- Protease inhibitors (- inavir)
- Grapefruit
Your patient informs you that their favorite juice is grapefruit juice. What do you know as a NP about grapefruit juice and drug interactions?
Statins, erythromycin, CCB, antivirals, amiodarone, benzodiazepines, cisapride, carbamazepine, and buspirone
Your patient is on Digoxin. What do you monitor?
Digoxin level, potassium, calcium, magnesium, EKG, creatinine
Your patient is on Lithium. What do you monitor for?
Lithium levels, and TSH
Patient is at risk for developing hypothyroidism on medication.
Your patient is on H2 Antagonist. What are some safety issues you need to know?
Patients with kidney disease may experience mental changes.
Do not prescribe if the creatine clearance is <50mL/minutes
Your patient is on PPI. What are some safety issues you need to know? What can it cause with prolong use?
Post-menopausal women are at risk for fractures. Can cause PNA C-diff Low Magnesium Malabsorption of B12 and iron Atrophic gastritis Kidney disease
What drugs interact with PPIs?
Warfarin Diazepam Carbamazepine Phenytoin Ketoconazole
Your patient is on Vitamin K Antagonist. What are some safety issues you need to know?
LOOK OUT FOR 4 G herbs. Make sure to ask about medications and herbs taken at home.
- garlic
- gingko
- ginseng
- ginger
Make sure to DC 7 days before surgery
Avoid Green leafy vegetables and mayonnaise
Your patient is on thiazolidinediones (TZDs) . What are some safety issues you need to know? BLACK BOX WARNING
BBW: Cause or exacerbate CHF. If the patient scores CLASS II or IV for the HF. DO NOT USE
Contraindications:
Hx of CHF, MI, STROKE, bladder cancer, DM-1, Eye disease, liver disease.
Your patient is on ACTOS. What symptoms would warrant the NP to discontinue this medication?
HF:
Dyspnea, weight gain, cough
Your patient is on atypical psychotic. What are some safety issues and educational topics you need to know?
Education that the medications will cause weight gain.
Can cause metabolic syndrome, DM2
Monitor for weight gain for the 1st 3 months
Your patient is on atypical psychotic. What will the NP monitor for?
Weight gain by measuring the body mass index Blood glucose Hgb A1C TSH Lipids
Your patient is on atypical psychotic. Name 3 drugs. What is the BLACK BOX WARNING?
- risperidone
- olanzapine
- quetiapine
BBW: higher mortality rate in the elderly
What are the contraindications for bisphosphonates?
Bisphosphonates cause erosive esophagitis
Active GI disease such as GERD or PUD
CKD
Esophageal strictures or varies.
Your patient is on STAINS. What are some safety issues you need to know?
Do not mix with grapefruit juice. Drug-induced hepatitis,
With -AZOLE antifungals can cause rhabdo.
Chinese descent: increase risk for rhabdo especially taken niacin.
Increase Kinase levels
A patient is on a -statin. What s/s would be indicative of rhabdo?
muscle weakness, muscle pain, muscle tenderness, brown or dark red urine.
A patient is taking lincosamides. What to monitor for?
Cleocin
high risk for c-diff
Your pediatric patient is on an inhaled corticoid steroid. What are some safety issues you need to know?
Children: can cause adrenal insufficiency if on longer than 6 months
Target: High doses with children with low BMI
Monitor for growth retardations
What is some s/s of adrenal insufficiency?
Hypoglycemia, hypotension, altered mental status, weakness, Cushingoid features)
A patient is on systemic glucocorticoids? What would cause CAUTION and safety issues?
Patients with cataract, osteoporosis, skin changes (telangiectasia, easy bruising), weight gain high BP
A patient is on phenytoin? What would cause CAUTION and safety issues?
Monitor for toxicity- horizontal nystagmus, unsteady gait, WORSENS with slurred speech, lethargy, confusion, coma
Education patient on gingival hyperplasia
What are the BEERS CRITERIA used for ?
Provide guidance regarding medications that should be AVOIDED for patients over 65 y/o
According to the BEERS CRITERIA, what medications should be avoided for sleep in patient older than 65 y/o.
First generation antihistamines may cause dizziness which will lead to falls.
- diphenhydramine
- doxylamine
- chlorpheniramine
According to the BEERS CRITERIA, what antipsychotics should be avoided in patient older than 65 y/o.
quetiapine
clozapine (Clozaril)
pimavanserin
USE WITH CAUTION
According to the BEERS CRITERIA, what anticoagulation should be avoided in patient older than 65 y/o.
Rivaroxaban
Dabigatran
Why? higher risk for bleeding than warfarin and other direct oral anticoagulants.
According to the BEERS CRITERIA, what does tramadol put patient over than 65 y/o at risk for.
Hyponatremia from SIADH
According to the BEERS CRITERIA, what does Opioids put patient over than 65 y/o at risk for.
Severe respiratory depression with BENZO and gabapentinoids.
What is the second-third line of drug to treat heart failure with a reduced ejection fraction?
DIGOXIN
What is the therapeutic range for digoxin?
0.5-2.0
Which plants put a patient at risk for cardia glycosides poison?
foxglove, oleander, and lily of valley
What are the s/s of a digoxin overdose?
GI (nausea/vomiting)
Hyperkalemia
Brady-dysrhythmias (atrioventricular [AV] blocks)
Tachydysrhythmias (ventricular tachycardia/fibrillation)
Atrial tachycardia with 2:1 block
Confusion
Visual changes (yellowish-green–tinged color vision).
What is the antidote for digoxin overdose?
Digoxin-specific antibodies
IgG antidigoxin antibodies
Digibind
DigiFab
What do you treat antiphospholipid syndrome?
Warfarin
(Antiphospholipid syndrome: An autoimmune disorder in which the immune system mistakenly produces antibodies and attacks the normal proteins in the blood. This results in increased risk of blood clots in legs, kidneys, lungs and brain.)
The NP is dosing a patient for Warfarin. What do the NP know about initial dosing?
ONSET 24-72 hours BUT it will take 5-7 days to reach the therapeutic range, therefore you will need a bridging agent such as Lovenox SUBQ (CARDS MD initiates it).
FOR atrial fibrillation, DVT, stroke/CVA what is the INR range?
2.0 to 3.0 (ideal INR 2.5)
For mechanical mitral valves (lifelong anticoagulation), what is the goal INR?
2.5-3.5
ideal 3.0
A patient has mechanical prosthetic valve, what should the NP expect?
Dual therapy -Concurrent
ASA and Warfarin
A NP expect an increase in INR after …
The INR will increase 2 to 3 days after the first warfarin dose
A patient is on Warfarin therapy. What is the follow-up for Consistently Stable INR?
Check every 2 to 4 weeks up to every 12 weeks.
A patient is on Warfarin therapy. What is the follow-up for Single Out-of-Range INR?
If patient has stable INR and has a single out-of-range INR ≤0.5 below or above therapeutic INR (2–3), experts suggest continuing current warfarin dose.
Retest INR within 1 to 2 weeks.
A patient is on Warfarin therapy. What is the follow-up for INR <5 With No Significant Bleeding Risk?
Omit one dose
Reduce maintenance dose slightly
Re-check INR.
Your patient reports eating green leafy vegetables while on Warfarin. What will the NP expect on lab work?
High intake of vitamin K will reduce anticoagulant effect of warfarin (will decrease INR)
FOODS: kale, spinach, collards/mustard/beet greens, broccoli raab, Mayonnaise, canola oil, and soybean oil
What is other another name for Vitamin K?
phytonadione
How would a NP educate a patient on Warfarin about alcohol usage?
Avoid drinking or limit to no more than one or two servings occasionally
Increases risk of bleeding even if INR is in target range.