Pharm Test #2 Flashcards
what is the second most common infection in the US
UTI
are UTIs more common in men or women
women
which patient is most at risk for a UTI
diabetic
pt with a fistula for dialysis
pt with indwelling catheter
pt with upper respir infec
pt with indwelling catheter
signs and symptoms of UTI
urinary frequency
urgency
burning
chills, fever, tenderness —- from acute pyelonephritis (inflammation of the kidneys)
how do you treat UTIs
antibiotics
what do the drugs that treat UTIs do
-block spasms of the urinary tract muscles
-decrease urinary tract pain
-protect cells of the bladder from irritation
-treat enlargement of prostate gland in men
what are the names of the meds that treat UTIs that are antiinfectives
nitrofurantoin (furadantin) - treats UTIs from bacteria
ciprofloxacin (cipro)
levofloxacin (levaquin)
trimethoprim-sulfamethoxazole (bactrim) – check for sulfur allergies
what actions do the UTI drugs do
-act specifically within the urinary tract to destroy bacteria
-act either through direct antibiotic effect or through acidification
what are the indications of UTI meds
-chronic UTI
-adjunctive therapy in acute cystitis and pyelonephritis
-prophylaxis with urinary tract anatomical abnormalities and residual urine disorders
what are the caution and contraindications of UTI meds
contrain - allergies
caution - renal dysfunction
what are the adverse effects of UTI meds
nausea, vomiting, anorexia, bladder irritation, and dysuria
pruitus, urticaria, headache, dizziness, nervousness, and confusion
what are the nursing considerations for antiinfectives
liver or renal dysfunction
skin, cns function, urinary elimination patterns, complaints of frequency, urgency, pain, difficulty voiding and lab values
meds used to treat UTIs are known as
antiinfectives
if an older person gets a UTI - what are the medications more likely to create
renal or hepatic impairments – requires caution in the use of these drugs
these block the spasms of urinary tract muscles caused by various conditions
urinary tract antispasmodics
what are the urinary tract antispasmodic medications
oxybutynin (ditropan XL) - oral/patch
tolterodine (detrol)
mirabegron (mirbetriq) - incontinence/overactive bladder
what are the actions of urinary tract antispasmodics
-block spasms of urinary tract muscles
-blocking parasympathetic activity
-relaxing the detrusor and other urinary tract muscles
what are the indications of urinary tract antispasmodics
bladder spasm and dysuria
what are the pharmacokinetics of urinary tract antispasmodics
rapidly absorbed, widely distributes
metabolized in liver and excreted in urine
contraindication of urinary tract antispasmodics
allergy
pyloric / duodenal obstruction
obstructive urinary tract problems
glaucoma - could increase pressure
urinary tract antispasmodics
cautions and drug to drug interactions
caution - rental or hepatic dysfunction
drug to drug - phenothiazines and haloperidol
nursing considerations for antispasmodics - UTI
- pyloric or duodenal obstruction or obstructions of other GI lesions lower urinary tract
- Glaucoma
- Skin, CNS, urinary elimination pattern, any complaints of freq, urgency, pain or difficulty voiding
urinary tract analgesia fix what
pain involving urinary tract can be very uncomforable and lead to urinary retention and increase risk of infection
what is phenazopyridine and what are examples
a dye that is used to relive urinary tract pain
ex: azo-standard, baridium
actions of urinary tract analgesia
when phenazopyridine is excreted in urine, it exerts a direct topical analgesic effect on urinary mucosa
what are the indications for urinary tract analgesia
relieve symptoms related to urinary tract irritation from infection, trauma, or surgery
pharmacokinetics of urinary tract analgesia
-rapidly absorbed and has a very rapid onset of action
-metabolized in liver and excreted in urine
adverse effects of urinary tract analgesia
-GI upset, headache, rash, reddish-orange coloring of urine and staining of contact lenses
-renal and hepatic toxicity
nursing considerations for urinary tract analgesia
-renal insufficiency
-skin, sclera, GI and hepatic function urinary elmination patterns - color, amount, and complaints of freq, dysuria, or difficulty voiding
-lab values & urine cultures
these is used to coat or adhere to bladder mucosal wall and protect it from irritation related to solutes in urine
bladder protectant
bladder protectant medication
pentosan polysulfate sodium (Elmiron) – heparin like qualities
oxybutynin - pts could be at risk for heat stroke bc cant perspire
-tolterodine (Detrol) - antichlorengenic drug – dont use if pt has glaucoma
-darifenacin
-potassium chloride
waht are the intended responses of bladder protectants medications
decrease urinary frequency
decrease urgency
decrease incontinence
side effect of bladder protectant
***know
dry mouth
dry eyes
headache
dizziness
constipation
adverse effects of bladder protectant
***know
chest pain
fast or irregular HR
shortness of breath
swelling (edema)
rapid weight gain
confusion
hallucinations
decreased urine output
*** know
what do you do right before administrating bladder protectant
need baseline vitals: weight, HR, BP
***know
what do you do right after administrating bladder protectant
watch for adverse effects
check BP and HR again
monitor fluid intake and output
actions of bladder protectants
-heparin like compound has anticoagulant and fibrinolytic effects
-adheres to bladder wall mucosal membranes and acts as buffer to control cell permeability, preventing irritating solutes in urine from reaching bladder wall cells
pharmacokinetics of bladder protectants
-coats bladder
-very little of drug is absorbed
contraindication of bladder protectants
condition involve risk of bleeding
heparin induced thrombocytopenia
bladder protectants cuations
hepatic or splenic dysfunction
adverse effects of bladder protectants
bleeding may progress to hemorrhage
headache
alopecia - loss of hair
GI disturbances
what are drug to drug interactions of bladder protectants
increase risks of following:
anticoagulants, aspirin, NSAIDS
nursing considerations bladder protectants
appropriate lab values - PT, PTT, INR, CBC
skin, VS, urinary elimination patterns
history of bleeding abnormalities, splenic disorders
hepatic dysfunction
patient teaching for bladder protectants
- swallow capsules WHOLE
- take on empty stomach with water
- avoid becoming overheated or dehydrated
enlargement of gland surrounding urethra leads to discomfort, difficulty in initiating stream of urine, feelings of bloating, and increased incidence of cystitis
benign prostatic hyperplasia
what 2 class of drugs assist in decreasing benign prostatic h.yperplasia
- alpha adrenergic blockers - doxazosin (Cardura), tamsulosin (Flomax)
- drugs that block testosterone production - finasteride (Proscar) - herbal remedy - saw palmetto contraindication—> toxic effects of drug
*** know
symptoms of BPH
-increased freq of urination and nocturia
-difficulty starting and continuing urination
-reduced force and size of urine stream
-feeling of incomplete bladder emptying
-dribbling after urinating
-signs and symptoms of BPH are same as for prostate cancer
-rapid or severe enlargement, bladder can become compeltely blocked
intended responses of BPH drugs
- decreased pressure on urethra and improved urine flow Tamsulosin (Flomax)
side effects of BPH drugs
decreased libido
erectile dysfunction
decreased seminal fluid
reduced fertility
lower blood pressure
adverse effects of BPH drugs
higher blood levels
DHT could affect hormones
birth defects
allergic reactions
drug interactions
nursing considerations frug drugs to treat BPH
-history of heart failure or coronary heart disease cardiopulmonary status - including vital signs especially BP and pulse rate, auscultate heart sounds and assess tissue perfusion
-urinary elimination pattern, prostate
what should not be taken with testosterone blockers
saw palmetto
these are chemicals that act at the same site as the neurotransmitter acetylcholine (ACh)
cholinergic drugs
these are often called parasympathomimetic drugs b/c of their action mimics action of parasympathetic nervous system
cholinergic drugs
these react with enzyme acetylcholinesterase and prevent it from breaking down the ACh that was released from nerve
indirect acting cholinergic agonists
similar to ACh and react directly with receptor sites to cause same reaction as if ACh had stimulated receptor
direct acting cholinergic agonsts
these increase tone of bladder and helps with urinary excretion
cholinergic agonists
what are direct acting cholinergic agonists used for
-increase bladder tone
-urinary excretion
-ophthalmic agents to relieve increased intraocular pressure of glaucoma
drugs for direct acting cholinergic agonists
bethanechol - used for post operative and post partum urinary retention, neurogenic bladder atony
carbachol (miostat) - relieves increased intraocular pressure of glaucoma
pharmacokinetics of direct acting cholinergic agonists
short life of 1-6 hours
what is important to know for direct acting cholinergic agonists
baseline of vitals
drug to drug interaction with direct acting cholinergic agonists
don’t combine with acetylcholinesterase inhibitors (neostigmine)
contraindications for direct acting cholinergic agonists
use sparingly due to toxic effects
know **
what do you teach pts about direct acting cholinergic agonists
renal or liver impairment - give smaller doses to prevent toxicity
bronchoconstriction for COPD and asthma pts must watch for
these block ACh at the synaptic cleft, which allows the accumlation of ACh released from nerve endings and leads to increased andprolonged stimulation of ACh
indirect acting cholinergic agonists
what is the indications of indirect acting cholinergic agonists
alzheimers disease
pharmacokinetics of indirect acting cholinergic agonists
metabolized in liver and excreted in urine
contraindications for indirect acting cholinergic agonists
allergy
bradycardia
intestinal or urinary tract obstruction
this is a progressive disorder involving neural degeneration in the cortex, destroy brain cells
alzheimers disease
this leads to a marked loss of memory and the ability to carry on activities of daily life
alzheimers disease
what drugs are used to treat alzheimers disease
-cholinesterase/acetylcholinesterase inhibitors
-donepezil (aricept) - dont use NSAID with drug — no anti inflammatory
-memantine (namenda) - cause pt to become anemic — monitor for this
these block ACh at the synaptic cleft, which allows the accumulation of ACh released from the nerve endigns and leads to increased and prolonged stimulation of ACh
indirect acting cholinergic agonists
what are the adverse effects of indirect acting cholinergic agonists
bradycardia - SOB
increased GI secretions and activity bleeding
worry about bleeding and ulcers
drug to drug interactions for indirect acting cholinergic agonists
NSAIDs, cholinergic drugs
nursing considerations for indirect acting cholinergic agonists
-get complete medication list
-VS, ECG as appropriate, urinary output
- renal/liver function tests
what do you need to know before and after administering indirect acting cholinergic agonists
***know these
-complete list of drugs pt is using including OTC and herbal
-baseline cognitive function
-baseline vital signs, weight, GI status, urinary status, hemoglobin and hematocrit
-swallowing ability
-ask about liver/kidney problems
what do you need to teach a pt regarding indirect acting cholinergic agonists
-dont crush extended release drugs
-take with food to avoid GI upset
this is used to treat mild to moderate alzheimer disease
it’s adverse effects is insomnia, fatigue, fash, nausea, muscle cramps, vomiting
donepezil
the actions of this drug - reverseible cholinesterase inhibitor causes elevated ACh levels in the cortex, which slows neuronal degradation of alzheimers disease
what drug is this
donepezil
this is the unpleasant sensory and emotional experience associated wtih actual or potential tissue damage
pain
what drugs are used to relieve pain
narcotics - opium derivatives used to treat many types of pain
when a pt requires higher dosage bc body used to drug
tolerance
relant on medication – needing it, craving it
addiction
if on drug long term, you get these coming off the drug
withdrawal
combination two drugs for more relief if pt gets tolerance of drug
adjunctive therapy
where are the opioid receptors
CNS
nerves in periphery
cells in GI tract
what narcotics are not to be used on children
levorphanol, oxymorphone and oxycodone
what narcotics can be used on children
codeine, fentanyl, hydrocodone, meperidine, and morphine
can the fentanyl patch be used on children
no
when do you give codeine to children:
as a cough suppressant bc it has anti tussed properties
when do you use fentanyl
for pre op
when do you use codeine
anti tussed
when do you use hydromorphone
used for pain. sickle cell oncology/cancer pt
this is used a lot for end of life. is in liquid, IV, and pill form
morphine
when do you use methadone
to help ppl detox
this is highly addictive, dont life to increase frequently
tramadol
another name for oxycodone
OxyContin. this is sustained release. every 8-12 hrs