Exam 3 Flashcards
Most common cause of UTI
E. Coli
Staph Saprophyticus 5-20%
Uncomplicated UTI
Pre-menopausal, sexually active, non-pregnant women
Complicated UTI
Men, postmenopausal, pregnant women, urinary structural defects, neurologic lesions, catheter use, symptoms >7 days
How many days of UTI treatment
1-3 days of antibiotics usually enough
Urinary analgesics
Methenamine, phenazopyridine, flavoxate
Treats urgency, burning, frequency, discomfort; acts as local anesthetic of urinary tract; discolors urine
Should not be used for more than 2 days
First line antibiotics for UTI
Bactrim
Nitrofurantoin (7 day course for uncomplicated UTI only)
Fofomycin (one time drug)
Fluoroquinolones (given for pyelonephritis, not uncomplicated UTI)
Second line antibiotics for UTI
Fluoroquinolones and fosfomycin for recurrent cystitis
-Reserved for complicated UTI and pyelonephritis
Antibiotics for UTI safe for pregnancy
amoxicillin, cephalexin, nitrofurantoin (1st and 2nd trimesters only)
Geriatrics treatment for UTI
Nitrofurantoin CI after 65
Educate about precipitating factors
Treat for 7-10 days in women and 10-14 days in men
Prophylactic UTI treatment
For patients with 3+ UTI’s
Lifestyle changes
CAM for UTI
Cranberry acidifies the urine
Probiotics
Categories of prostatitis
1: acute bacterial prostatitis
2: chronic bacterial prostatitis
3: chronic nonbacterial prostatitis and pelvic pain syndrome
4: asymptomatic inflammatory prostatitis
Main organisms for acute bacterial prostatitis
E Coli and pseudomonas
S/S prostatitis
Pain in lower abdomen, difficulty with bladder emptying, small stream, nocturia, fever, painful ejaculation, pain in rectal or perineal area
Antibiotics for prostatitis
Coverage of G-
Usually treat for 4-6 weeks or up to 12 weeks
Fluoroquinolones have best tissue penetration
Bactrim has less penetration and high resistance
Must monitor creatinine clearance
2nd line therapy for prostatitis
Doxycycline, azithromycin, clarithromycin for 4-6 weeks
BPH may be due to
Higher amounts of estrogen within the gland which increases activity of substances that promotes cell growth
Increased smooth muscle tone in lower urinary tract due to stimulation of cell receptors–increased urethral resistance and outlet obstruction
Main classes of drugs for BPH
Alpha 1 blockers, 5 alpha reductase inhibitors, PDE type 5 inhibitor
alpha 1 blockers for BPH
-Zosin
relaxes smooth muscle of prostate and bladder neck without interfering with bladder contractility
Relaxes sympathetic tone
May take months for effects
SE: hypotension, fluid retention, fatigue
Take at night
Tamsulosin highly selective with less side effects
5 alpha reductase inhibitors
Fibasteride + Dutasteride
Decreases levels of intracellular DHT without reducing testosterone levels
Decreases size of prostate
SE: decreased libido, impotence, gynecomastia, may falsify levels of PSA
Category X (can’t even touch)
1st line for BPH
Watchful waiting if low questionnaire, limit fluids, avoid decongestants, massage prostate, void frequently
2nd line for BPH
Alpha blocker if score >7
5 alpha reductase inhibitor
If history of hypertension, use alpha blocker
3rd line for BPH
Combination of alpha blocker and 5 alpha reductase inhibitor
CAM for BPH
Saw Palmetto, pygeum, Zinc
Primary treatment for BPH
Surgery
Treatment initiated when symptoms become problematic
Sequence for erection to occur
Nerve impulses in the brain, spinal column and area around the penis + response in muscles, fibrous tissues, veins, arteries near corpora cavernosa
Release of NO following PANS essential for erection–> smooth muscle relaxation that promotes inflow of blood
Drugs that can affect erectile dysfunction
Alcohol, analgesics, anticholinergics, anticonvulsants, antidepressants, antihistamines, antihypertensives, corticosteroids, diuretics, nicotine, tranquilizers
phosphodiesterase 5 inhibitors
Sildenafil, tadalafil, vardenafil
30-120 minutes for response
Inhibits breakdown of one of messengers required for erection
CI: nitrates, unstable angina, systolic BP<90, uncontrolled HTN, recent stroke, arrhythmias, cardiac impairment, renal disease, alpha blockers, recent MI
SE: headache, flushing, nasal congestion, dyspesia
Avoid with high fat meals
1st line tx for ED
Lifestyle changes
PDE5 inhibitor
If no response, refer to urologist
Follow up after 6 months
CAM for ED
Yohimbine
Overactive bladder
Ach mediated activation of muscarinic receptors is predominant mediator in detrusor contraction–primarily M3 receptor
Behavioral therapy
Bladder training, pelvic floor muscle exercises, weight loss
Anticholinergics for OAB
Oxybutynin, tolterodine, trospium, solifenacin, fesoterodine
Blockade of muscarinic actions–inhibits action of ACh on bladder smooth muscle
Increases bladder capacity, decreases intensity/frequency of bladder contractions, delay initial urge to void
Can cross BBB
Time frame of response 2 weeks
CI: urinary retention, narrow angle glaucoma, severe renal impairment
SE: constipation, urinary retention, xerostomia
Estrogen for OAB
Improves tone and elasticity of female urogenital anatomy by increasing secretion of cervical mucosa, thickening of vaginal mucosa and proliferation of endometrium
Beta adrenoreceptor agonist for OAB
Mirabegron
Selective B3 agonist
Increases bladder capacity and decreases frequency of urination without impacting urine pressure or residual volume
B3->NE–>Increased cAMP–>smooth muscle relaxation–> increased storage
Botox for OAB
Reserved for patients who have failed other treatments
Injected into detrusor muscle
Inhibits Ca dependent release of ACh, ATP and substance P; desensitizes motor neurons, decreases M1, M2 and M3
UTI common SE
SNRI for OAB
Venlafaxine + Duloxetine
Antidiuretic drugs for OAB
Desmopressin
Can inhibit diuresis without impacting blood pressure
CI: hyponatremia, renal impairment
SE: Water retention
1st line tx for OAB
Anticholinergic Oxybutynin + behavioral modifications
Mirabegron can be considered
2nd line tx for OAB
Try different anticholinergic
Duloxetine
Estrogen
3rd line tx for OAB
Botox or surgery
CAM for OAB
Saw palmetto extract
Beta adrenoreceptor agonist for OAB
Mirabegron
Selective B3 agonist
Increases bladder capacity and decreases frequency of urination without impacting urine pressure or residual volume
B3->NE–>Increased cAMP–>smooth muscle relaxation–> increased storage
Botox for OAB
Reserved for patients who have failed other treatments
Injected into detrusor muscle
Inhibits Ca dependent release of ACh, ATP and substance P; desensitizes motor neurons, decreases M1, M2 and M3
UTI common SE
SNRI for OAB
Venlafaxine + Duloxetine
Antidiuretic drugs for OAB
Desmopressin
Can inhibit diuresis without impacting blood pressure
CI: hyponatremia, renal impairment
SE: Water retention
1st line tx for OAB
Anticholinergic Oxybutynin + behavioral modifications
Mirabegron can be considered
2nd line tx for OAB
Try different anticholinergic
Duloxetine
Estrogen
3rd line tx for OAB
Botox or surgery
CAM for OAB
Saw palmetto extract
Drugs that worsen OAB
Sedatives and hypnotics, phenothiazines, alpha blockers, caffeine
Most prevalent STI in the US
Chlamydia
S/S chlamydia
Vaginal discharge, mucopurulent cervicitis with edema and friability, urethritis, PID, ectopic pregnancy, infertility, endometriosis
1st line therapy for chlamydia
Azithromycin 1 dose DOC
Doxycycline–less expensive
Fluoroquinolone–Ofloxacin
2nd line tx for OA
NSAIDs
Ointment for newborns in eyes
Erythromycin opthalmic ointment
1st line tx for syphilis
Penicillin G IM 1 dose
if allergic, desensitize patient
Can try doxycyline if CI penicillin
Most common pathogens for PID
N. Gonorrhoeae and C. trachomatis
Tx for PID
Same as chlamydia/gonorrhea (Azithromycin + Ceftriaxone)
Drug therapy for genital warts
Podofilox + Podophyllin Resin (self applied gel, apply weekly, wash after 1-4 hours)
Imiquimod (self applied cream, apply 3x a week, leave for 6-10 hours)
Trichloroacetic acid + Bichloroacetic acid (applied by professional, left to air dry)
Joints commonly affected by OA
Knees, hips, cervical/lumbar spine, distal interphalangeal joints and carpometacarpal joint
1st line tx for OA
Acetaminophen
2nd line tx for OA
NSAIDs
Diflunisal
Non-acetylates salicylates
Beneficial in patients sensitive to GI irritation caused by aspirin use
Can be used for OA
Capsalcin
Topical agent
Decreases substance P (usually responsible for pain transmission)
Can be used for OA
Steroids for OA
Indicated if 1-2 joint involvement and has not responded to 1st or 2nd line treatment
Tramadol
Mu opioid receptor agonist similar to other opioids such as morphine; ascending pain pathways are inhibited
Do not exceed 400mg a day
Response in 1-2 hours
CI: opioid dependency, acute intoxication of alcohol, hypnotics, psychotropics
SE: nausea, dizziness, sweating, drowsiness, constipation, respiratory depression
Xanthine oxidase inhibitors
Allopurinol + Febuxostat
Decreases uric acid levels by selectively inhibiting xanthine oxidase–primarily responsible for converting xanthine into uric acid
Probenecid
Increases excretion of serum uric acid by inhibiting reabsorption of uric acid at proximal tubule
Used if XOI is CI or not tolerated
Pegloticase
Last line therapy for gout
Very expensive IV drug
Acute gout treatment
Rest joint, ice, short course of NSAIDs, steroids or colchicine
Colchicine
Inhibits activation, degranulation and migration of neutrophils to area of gout attack
Take within 24 hours of attack
MOA of acetaminophen
Inhibits central COX, which results in decreased prostaglandin synthesis; has analgesic and antipyretic effects but not anti-inflammatory effects
Take around the clock for OA pain management; maximum of 4000mg per day
Pain relief within 1 week
SE: dizziness, rash, hepatic failure
Interactions: warfarin, isoniazid
NSAIDs
Indicated for OA, RA, mild to moderate pain
Inhibits COX
Anti-inflammatory–inhibits production of prostaglandins, prostacyclin and thromboxane in both CNS and PNS (Blocks COX enzyme)
Analgesic + antiplatelet (reduces production of TXA)
Do not take with aspirin or ACEI
SE: increased mucosal damage, less vasodilation, decreased blood flow to kidneys
Biologic disease modifying antirheumatic drugs
Tumor necrosis factor inhibitors Etanercept, -mab Bind the circulating TNF alpha and render it inactive, which decreases the chemotactic effect All are injectables Rapid response CI: infections, activation of latent TB Do not use with abatacept
Diclofenac MOA
Same as NSAID
Has less side effects due to being topical
Do not apply to damaged or non-intact skin
SE: rash, dry skin, itching, exfoliation
Sulfasalazine for RA
Anti-inflammatory effect
CI: sulfa allergy, pregnancy and lactation
SE: nausea, diarrhea, dizziness, intestinal and urinary obstruction, orange yellow skin, HA, depression, bone marrow suppression
S/S RA
Morning stiffness in involved joints persisting for at least 1 hour and subsides with activity; painful, swollen joints
NSAID for RA
Continued from initial diagnosis to initiation of DMARD
Steroids for RA
Higher doses are beneficial in acute flares to regain control of inflammation of pain
DMARDs
Methotrexate, sulfasalazine, hydroxychloroquine, Leflunomide
Should be initiated within 3 months of symptoms
1st line therapy for RA
Methotrexate or leflunomide monotherapy
Sulfasalazine for poor prognostic factors
Hydroxychloroquine
TNF alpha inhibitors + methotrexate for high disease activity
Biologic disease modifying antirheumatic drugs
Tumor necrosis factor inhibitors
Etanercept, -mab
Bind the circulating TNF alpha and render it inactive, which decreases the chemotactic effect
COX2 inhibitors
Celebrex
Can be used if patient is a risk factor for GI complications
Less likely to cause ulcers and bleeding
Sulfasalazine
Anti-inflammatory effect
CI: sulfa allergy, pregnancy and lactation
SE: nausea, diarrhea, dizziness, intestinal and urinary obstruction, orange yellow skin, HA, depression, bone marrow suppression
Antimalarials for RA
Hydroxychloroquine
Low risk of SE, does not lower progression of RA
Inhibits antigen processing by elevating cellular pH
CI: pre-existing retinal field changes
SE: nausea, diarrhea, abdominal discomfort, photosensitivity, skin pigment changes, damage to retina
Interactions: beta blockers, cyclosporine, digoxin
Pregnancy category C
Lelfunomide
Anti inflammatory and anti proliferative, retarding erosions and joint space narrowing
Decreases B cell and T cell proliferation
Similar to methotrexate
CI: pregnancy (Wait 2 yearS), hepatotoxicity, alcoholism, liver disease
SE: elevated LFT, GI symptoms, weight loss, alopecia, bone marrow suppression
May increase warfarin
Abatacept
Decrease activation of T cells; Given IV, infusion or subcu
SE: COPD exacerbations
Interactions: live vaccines and TNF inhibitors
Tocilizumab
Blocks IL6, decreases B cell and T cell activity
Given IV
SE: increased LDL and liver enzymes
Interactions: live vaccines, leflunomide, TNF alpha inhibitors
1st line therapy for RA
Methotrexate or leflunomide monotherapy
Sulfasalazine for poor prognostic factors
Hydroxychloroquine
TNF alpha inhibitors + methotrexate for high disease activity
Only DMARDs ok to use during pregnancy
Antimalarials, sulfasalazine, azathioprine, cyclosporine