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Pharmacology II
Respiratory, Hormones, Diabetes, Angina, Heart Failure, Hyperlipidemia, HTN, Renal
88
Nursing
Undergraduate 4
07/07/2009

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Cards

Term
Activation of what adrenergic receptor is useful for asthma?
Definition
B receptors - particularly B2
Term
Why are Beta Adrenergic Agonists not effective by themselves in treathment of asthma?
Definition
Only cause bronchodilation, not antinflammatory effect
Term
In what disease states are Beta Adrenergic Agonists problematic?
Definition
Acute asthma attacks (long-acting); cardiac disease (tachycardia); seizures (stimulant); anti-depressants (additive effect); DM (hyperglycemia)
Term
How does Ipratropium differ from Salmeterol?
Definition
Ipratropium is a muscarinic antagonist with fewer side effects (only anticholinergic), but slower than B andrenergic drugs
Term
How does Albuteral differ from Salmeterol?
Definition
Both are B adrenergic agonists. Albuterol's is in 3 minutes; while Salmeterol requires 30 minutes. Albuterol would be used in acute asthma attacks.
Term
Proper procedure for inhaler use
Definition
Shake container > Sit upright > Deep breath > Exhale completely > Position just outside mouth > Inhale slowly as dose > Inspire as deeply as possible (3-5s) > Hold inspiration {10s} > Exhale > Wait 2-3 min before next dose > Rinse mouth/equipment
Term
Why aren't Methylxanthines used much today?
Definition
Narrow therapuetic range. Interfere with many drugs. Stimulant.
Term
Major drug classification of therapy for maintenance/prevention of asthma?
Definition
Steriods = Inhaled glucocorticoids
Term
What role do steroids play with asthma?
Definition
Antinflammation. Sensitize receptor to B agonists. Inhibits neutrophils/ eosinophils/ histamine/ leukotrienes/ prostaglandins
Term
Why are topical steroids preferred in asthma therapy?
Definition
Decreased systemic effects compared to PO. Maintenance.
Term
Why aren't steroids used in acute attacks?
Definition
May take 4-6 weeks for full effect. Maintenance drug for antinflammation. Not rapid-acting.
Term
What are concerns related to systemic steroids?
Definition
Hypokalemia (Na/H2O retention); DM (hyperglycemia); Osteoporosis (suppressed osteoblasts); PUD (inhibit prostaglandins); infection (blunt inflammatory response); candidiasis
Term
How do Leukotriene Modifiers and Mast Cell Stabilizers help manage asthma?
Definition
Block leukotrienes responsible for edema/inflammation/bronchoconstricion/mucous production. Stabilize mast cells to decrease histamine release. Minimize inflammation. Used for prevention of asthma.
Term
Leudotriene Modifiers are metabolized extensivley by the liver... Concern?
Definition
Sxs of hepatic compromise. Monitor LFTs.
Term
What added concern for elderly using Leukotriene Modifiers?
Definition
Causes infection as s/e.
Term
MOA of Mast Cell Stabilizers
Definition
Stabilize mast cells. Decrease histamine release. Similar to leukotriene modifier MOA. Minimize inflammatory response. Preventative.
Term
Which therapies are useful in COPD?
Definition
Inhaled anticholinergic/antihistamine (Ipatropium/Atrovent).
Term
What should be taught to all clients using respiratory drugs?
Definition
Use B agonist first to dilate bronchioles, then use glucosteroid for antinflammation. Check lung capacity daily. Proper administration technique. Multiple drug regimen. Minimal symptoms/exacerbation/emergency incidents. Decrease long-term remodeling.
Term
How are antihistamines effective in the treatment of rhinitis?
Definition
Block histamine-1 receptors. Prevent inflammatory response.
Term
What significant side effects are associated with antihistamines?
Definition
Sedation (1st gen), anticholinergic, photsensitivity, GI upset, HA
Term
How do first and second generation antihistamines differ?
Definition
Second generation do NOT cross the blood-brain barrier, so decreased CNS depression. Therefore, less sedation/drowsiness. Second generation are more expensive.
Term
When are antihistamines contraindicated?
Definition
Anticholinergic, CNS depression (1st gen), seizures
Term
Antihistamine pt education
Definition
Anticholinergic side effects. No OTCs/ETOH. May cause drowsiness (1st gen)
Term
How do glucocorticoids work to treat rhinitis and asthma?
Definition
Anti-inflammatory = inhibit neutrophils/leukotrienes/histamine/prostaglandins. Sensitize receptors to B agonists.
Term
Proper procedure for nasal spray
Definition
Blow nose > Shake container > Do not swallow dose > Administer decongestant first > Don't blow nose after.
Term
How long will it take steroids to reach maximum effect?
Definition
4-6 wks
Term
The activation of which adrenergic receptor is useful for treating nasal congestion?
Definition
A1 receptor
Term
What contraindications are there for the activation of A1 recptors?
Definition
hyperthyroidism, HTN, DM, CV disease, caution in BPH, excoriated nares
Term
What is the biggest concern for intranasal dispensing of decongestants?
Definition
rebound congestion
Term
How long should intranasal dispensing decongestants be used for?
Definition
3-5 days
Term
How do opioids and antitussives work to relieve coughing?
Definition
Blunt cough centers in CNS
Term
Should a cough always be surpressed?
Definition
No. Necessary to move secretions out of lungs.
Term
How long should a person use an OTC antitussive?
Definition
3-5 days
Term
What is the difference between mucolytic and expectorant?
Definition
Mucolytic = Disrupts molecular structure of mucous and acts as a detergent. Expectorant = Changes surface tension of mucous to liquefy secretions.
Term
Besides being a mucolytic, what therapeutic use does acetylcysteine have?
Definition
Antidote for acetaminiphine OD. Prevents tylenol from binding to hepatocytes.
Term
What is the source of releasing hormones?
Definition
Ultimately the hypothalamus... > pituitary gland > target organ
Term
Somatropin Indications
Definition
GH deficiency, short stature
Term
Somatropin contraindications
Definition
closed epiphyses, obesity
Term
What monitoring tests are required for somatropin therapy?
Definition
height, weight, glucose tolerance, thyroid function
Term
What is the function of ADH?
Definition
Stimulate water retention by the kidneys
Term
What are the indications for vasopressin (Pitressin)?
Definition
diabetes insipidus
Term
What monitoring should be done for a pt taking vasopressin?
Definition
BP, CRT, chest pain, palpitations, thirst, SG, I/O, weight, edema, electrolytes, Na, HA, MS, seizures
Term
Vasopressin contraindications
Definition
CAD, angina, MI, HTN
Term
What element is essential for thyroid function?
Definition
Iodine
Term
Sxs Hypothyroidism
Definition
weight gain, cold intolerance, bradycardia, fatigue, poor concentration, constipation, brittle hair, edema, mestrual spotting
Term
Sxs Hyperthyroidism
Definition
weight loss, heat intolerance,tachycardia, palpitations, agitation/fatigue, diarrhea/constipation, fine hair, exophthalamus, absent menses
Term
Myxedema
Definition
Severed hypothyroidism in adulthood
Term
Which synthetic thyroid hormone is most likely to be used for thyroid replacement?
Definition
Levothyroxine
Term
What are the risks for children who dod not make thyroid hormone?
Definition
Cretinism. TH required by every cell of body. Affect CNS development > retardation.
Term
In what conditions is TRT contraindicated?
Definition
adrenal insufficiency, hyperthyroidism
Term
TRT monitoring
Definition
weight, VS, TFTs, cholesterol, sxs hypothyroidism/hyperthyroidism
Term
How long does it take for TRT to take effect?
Definition
4-6 weeks to reach therapeutic range
Term
What is Grave's disease?
Definition
Overactive thyroid. Goiter.
Term
Prototype antithyroid drug?
Definition
Propylthouracil (PTU)
Term
PTU MOA
Definition
Inhibits conversion T4 to T3 in target tissues
Term
Side effects of PTU
Definition
Hypothyroidism, BMD, hepatotoxicity
Term
3 categories of adrenal hormones
Definition
Gonadocorticoids, mineralcorticoids, glucocorticoids
Term
Godanocorticoid Fxn
Definition
reproduction, secondary sex characteristics
Term
Mineralcorticoids Fxn
Definition
fluid/electrolyte status per BP
Term
Glucocorticoid Fxn
Definition
Ability adapt to stress, BP, glucose, immunity, inflammatory response
Term
Primary mineralcorticoid
Definition
Fludrocortisone (Florinef)
Term
Fludrocortisone (Florinef) indication
Definition
Primary HTN, additional water retaining effect in persons with Addison's disease
Term
Prednisone (Deltasone) indication
Definition
long-term therapeutic anti-inflammatory, immune, hypersensitivity, Addison's disease replacement, hypercalcemia, transplants, cancer
Term
Hydrocortisone (Cortef) indication
Definition
replacement in Addison's, acute inflammatory/allergic reactions
Term
Why must glucocorticoid therapy be tapered?
Definition
Cause adrenal criss = addison's disease
Term
Advantage using glucocorticoid without mineralcorticoid effect?
Definition
Lessen side effects of HTN, water retention, hypokalemia because no fluctuate electrolyte/fluid status
Term
How does alternate day dosing benefit pt receiving therapeutic glucocorticoids?
Definition
Prevents atropy of adrenal gland, which occurs with continuous circulation of adrenal hormones.
Term
Risks of long-term glucorticoid use
Definition
steroid-induced diabetic, Cushing's effect, infections, HTN, PUD, osteoporosis, phychoses, hypokalemia
Term
Dietary modifications for glucocorticoids
Definition
Minimize salt, increase K, sxs hypoglycemia,
Term
How do steroids affect appearance?
Definition
muscle wasting, poor wound healing, phychoses, thinning skin, vessel fragility, cataracts, moon face, facial hair, blunt growth, increase fatty deposition
Term
Onset of action for regular insulin?
Definition
30 minutes
Term
Peak action of regular insulin
Definition
2-4 hrs
Term
How do novolog and humalog differ from regular insulin?
Definition
All rapid acting. But novolog and humalog have quicker onset at 10-15 minutes compared to 30 minutes for regular insulin.
Term
In what order should insulin be drawn when mixing types?
Definition
Draw rapid-acting first, then long-acting. Only contaminat long-acting.
Term
Onset/peak of NPH
Definition
4 hr onset; 8-12 hr peak
Term
Insulin given IV
Definition
regular (humalin R)
Term
Type insulin given pump?
Definition
rapid-acting = novolog, humalog, humalin R
Term
Unique about glargine insuline?
Definition
No peak of action
Term
Why do we need to know the onset of action of insulin?
Definition
Help plan around meal times so stabilized blood sugar upon eating
Term
Why do we need to know the peak of aciton of insulin?
Definition
Most at risk for hypoglycemia. Give snack and monitor.
Term
Sxs hypoglycemia
Definition
HA, shaking, agitation
Term
How do we treat hypoglycemia?
Definition
Give a snack.
Term
How do we measure short-term glycemic control?
Definition
blood glucose
Term
How do we measure long-term glycemic controL?
Definition
HgAIC monitoring
Term
Which OHA stimulates insulin release from pancreas?
Definition
Glipizide (Glucotrol) = sulfonylurea.
Netaglinide (starlix) = meglitinides.
Term
Which OHA should be d/c before high-risk procedures due to the risk of lactic acidosis?
Definition
Metformin (Glucophage) = biguanide
Term
Which OHA may contribute to HF in at-risk pts?
Definition
Prioglitazone (Actos) = thiazolidinediones
Term
Which OHA should be given with the first bite of the meal?
Definition
Acarbose (Precose) = Alpha-glucosidase inhibitor. Since it slows carbohydrate absorption.
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