UROLOGY REVIEW 2/11/2014 Genitourinary Blueprint – 6% of Exam

2/11/2014
Genitourinary Blueprint – 6% of Exam
UROLOGY REVIEW
“MUST KNOWS”
FAPA 2014 Winter Symposium
Jeanette Lain, MHS, PA
Atlantic Urological Associates
Deland, Florida
GU Tract
Infections
Neoplastic
Renal
Fluid/Elect
BPH
Cystitis
Bladder CA
Acute Renal
Failure
Hypovolemia
Congenital
Abnormalities
Epididiymitis/
Orchitis
Prostate CA
Chronic
kidney
disease
Hypervolemia
Cryptorchidis
C
t hidi
m
P t titi
Prostatitis
Renall Cell
R
C ll
Carcinoma
Gl
Glomerulol
nephritis
Acid/base
A
id/b
disorders
ED
Pyelonephritis Testicular
Carcinoma
Hydronephrosis
Hydrocele
Urethritis
Nephrotic
Syndrome
Wilms Tumor
Incontinence
PKD
Stones
Vascular
Phimosis
Anatomy of Genitourinary System
More Detailed Anatomy of GU System
Female versus Male GU Anatomy
Acute Cystitis – Bladder Infection
Symptoms
Etiology
Lab Findings
Treatment
Irritative voiding
Inflammed
bladder
UA:Pyuria,
bacteriuria,
hematuira
3 day course:
Bactrim/Cipro
Suprapubic pain
Coliform bacteria
or g
o
gram
a ((-))
Culture (+)
Ampicillin
Cephelexin
Cep
ee
Doxycycline
Possible gross
hematuria
Usually ascends
from urethra
XR – only if
complications
Pyridium for
bladder analgesic
Often occur after
intercourse
F>M, due to
location and
length of urethra
Cranberry
supplement
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Acute Epididymitis
Chronic Bacterial Prostatitis
Symptoms
Etiology
Lab Findings
Symptoms
Etiology
Lab Findings
Treatment
Follows acute
physical activity,
trauma or sexual
Most are
infectious
CBC: leukocytosis Bed rest with
scrotal elevation
Nocturia, dysuria,
frequency
May evolve from
acute bacterial
prostatitis
Culture:
Causative agent
Bactrim, cipro,
doxycycline for 6
weeks
Urethritis, urethral
discharge
2 categories:
<40
40 yo: STD
>40 yo: UTI,
prostatitis
STD subtype:
Gram stain:N.
gonorrhea or C.
trichomatis
STD subtype:
Abx for 10
10-21
21
days
Treat partner
Chronic perineal
or suprapubic
discomfort
Caused by gram
((-)) rods (E. coli,
Pseudomonas)
Non STD subtype:
UA: pyuria,
bacteruria and
hematuria
Culture: causative
agent
Non STD subtype:
Abx
(Fluroquinolone)
For 21-28 days
Expressed
Hot sitz baths
prostatic secretion
(EPS): increased
leukocyte and
lipid laden
macrophages
Irritative voiding
symptoms
Treatment
Pain in scrotum
Irritative voiding
symptoms
TURP
Low Back Pain
Anti-inflammatory
agents
Hx of chronic UTI
Fever
Scrotal swelling
Non-bacterial Prostatitis
Acute Bacterial Prostatitis
Symptoms
Etiology
Lab Findings
Treatment
Symptoms
Etiology
Lab Findings
Nocturia, dysuria,
frequency
Unknown:
possible
autoimmune
EPS: positive
Antimicrobials
Fever, perineal,
scaral or
suprapubic pain
CBC: leukocytosis Hospitalization
Chronic perineal
or sup
o
suprapubic
apub c
discomfort
Possible
interstitial
te st t a cystitis
cyst t s
CBC: increased
WBC
C
Antiinfammatories
a
ato es
ONLY
PROSATITIS
WITH FEVER
AND POSITIVE
UA
Treatment
Irritative voiding
symptoms
Possible
mycoplasma or
ureaplasma
Exquisite
tenderness w/
DRE
Caused by gram
(-) rods (E. coli,
Pseudomonas)
UA: Pyria,
bacteriuria,
hematuria
Ampicillin and
aminoglycoside
until cultures
come back
Low back pain
Possible
chlamydia
Irritative voiding
symptoms
Route: ascent up
urethra and reflux
of infected urine
into prostate
Culture: causative
agent
Oral Abx: Bactrim
or quinolones for
4-6 weeks
Obstructive
symptoms
Pyelonephritis
Classification of Urinary Incontinence
Symptoms
Etiology
Lab Findings
Treatment
• Stress incontinence
Fever, flank pain,
shaking chills
Infectious
inflammatory
disease of renal
parenchyma and
renal pelvis
CBC: increased
WBC
Broad spectrum
abx:
aminoglycosides,
ampicillin
• Urge incontinence
Nausea, vomiting,
diarrhea
Grossly enlarged
kidney and full of
pus
UA: pyuria,
bacteruria,
hematuria
Treat nausea,
pain and vomiting
Irritative voiding
Gram (-) aerobic
bacteria
Culture: heavy
growth of
causative agent
Hydration
Tachycardia
E. coli, Proteus,
Pseudomonas,
Klebsiella,
Enterobacter
XR: Enlarged
kidney
Repeat culture 46 months
Pronounced CVA
t d
• Total incontinence
• Overflow incontinence
• Mixed incontinence
• Combination of two or more of above
Failure: CT for
t
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Normal Urinary Tract Stats
Stress Incontinence
• Bladder capacity 400-600 ml
Symptoms
• Bladder filling pressure 10cm H2O
Involuntary loss of Most common in
urine during
women, rare in
activities
men
• Male voiding pressure 50-75 cm H2O
• Female voiding pressure 30-50 cm H2O
• Male Urine Flow 15-25 ml/s
• Female Urine Flow 30-35 ml/s
• Urethral pressure 20 cm H2O
Etiology
Topical estrogen
(Estrace cream,
premarin cream,
Vagifem)
Pelvic floor
weakness,
multiparity, pelvic
surgery
Kegel exercises to
strengthen pelvic
floor
No leakage when
in supine position
Bladder neck falls
below pubic
symphysis
Vaginal Pessary
Shortened urethra
Possible surgery
Bulking agents
S/P RRP and
TURP
Artificial urinary
sphincter, male
urethral sling
Artificial Sphincter
Urge Incontinence
Total Incontinence
Symptoms
Etiology
Lab Findings
Treatment
Symptoms
Uncontrolled loss
of urine preceded
by a strong,
unexpected urge
to void
Indicative of
detrusor
overactivity
Urine culture: UTI
indications
Anticholinergics:
tolderadine,
oxybutynin,
solifenacin
Involuntary loss of Anatomic
abnormalities
urine at all times
and in all
positions
Unrelated to
position of activity
May be caused by
inflammation,
neurogenic
disorder, urethral
obstruction,
detrusor instability
Urodynamic
evaluation:
bladder and
sphincter
dysfunction
Antispasmodics;
Hyoscyamine
Tricyclics:
amitriptyline,
imipramine
Surgery
Treatment
Cysto: increased
bladder length or
bladder neck
displacement
Leak w/Coughing,
sneezing, lifting,
laughing, running
Pessaries come in all shapes and sizes
Bladder training
Lab Findings
Etiology
Sp cte
Sphincter
deficiency due to
surgery, nerve
damage, cancer
Lab Findings
Treatment
Surgical
corrections
External
te a co
condom
do
catheters
Fistula between
urinary tract and
skin that
bypassed
sphincter
Ectopic ureteral
orifices, urethral
diverticula,
vesicovaginal
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Overflow Incontinence
Nephrolithiasis – Urinary stone disease
Symptoms
Etiology
Lab Findings
Treatment
Uncontrolled loss
of urine due to
chronic UTI
Most common in
men: BOO
Intravesical
pressure exceeds
resistance of
sphincter
PE: BPH
Behavior
modification
Urine dribbles out
of distended
bladder
PVR: >300cc
Urethral
obstruction (Men
prostate
enlarged), urethral
stricture or
prostate cancer
Surgical
intervention:
TURP/TUIP
Neurogenic
bladder: MS, DM,
CVA
Catheterize self
Urine test for
renal function
Renal Stones
• Basics
• 90% of kidney stones are radio-opaque
• A metabolic or environmental etiology can be found in >/= 97% of
patients with stone disease
• Most common stone is calcium oxylate **
• Most common metabolic cause of stones is hypercalciuria (high
calcium in urine) **
• No pain no treatment
• Symptomatic then surgical intervention: ESWL vs Perc vs basket
Calcium Nephrolithiasis
Symptoms
Etiology
Treatment
Type
Lab findings
Treatment
Colicky pain that
comes on
suddenly
M:F 4:1
Stone analysis
Sedentary lifestyle 1st- baseline
2nd- more
more prone
extensive
Lab findings
Watchful waiting
depending on size
<5mm should
pass on own
Hypercalciuria Increased
Type I:
Absorptive
absortion in
independent
small intestine of Ca intake
XR:
radiopaque
Ca ot get into
Cannot
to
comfortable
position
Age:
ge 30
30-40
0 yo
Genetic factors
U
UA:micro
coo
or g
gross
oss
hematuria
Su g ca ESWL,
Surgical:
S
,
Ureteroscopic
stone extraction
Pain may refer to
ipsilateral testis of
labium
Geographic: hot
summer, high
humidity
pH: >7.5 struvite
pH<5.0 uric acid
or cystine
I: decrease
bowel
absorption of
Ca
II: decrease
Ca in diet
III: inhibit Vit
D synthesis
Resorptive
Hyperparathyroid
XR:radiopaq
If stone at UVJ, pt
complaint of
urinary frequency
and urgency
Diet and fluid
intake:
dehydration
KUB/RUS won’t
dx most stones
Surgical
resection of
the adenoma
Hypercalciuric
Renal
Renal tubules XR:radiopaq
can’t reabsorb
filtered Ca
HCTZ
UPJ, UVJ, iliac
crest
IVP/CT for
location/hydro
Hyperuricosur
ic - renal
Dietary
excess of uric
acid
Purine dietary
retrictions
allopurinol
Calcium Nephrolithiais
Symptoms
Etiology
UpH >5.5
Other GU Stones
Type
Symptoms
Etiology
Lab findings
Treatment
Type
Symptoms
Etiology
Lab findings
Treatment
Hyperoxalauria
Renal
Same as
CaOx
Intestinal
disorder
Chronic
diarrhea, IBD,
steatorrhea
XR:
Radiopaque
Calcium
supplement
Uric Acid
Hx of gout
Composed of
uric acid
XR:radiolucnt
UpH <5.5
Pot Citrate
Allopurinol
Cystine
Smooth with
ground glass
appearance
appea
a ce
XR:radiolucnt
UpH<5.0
Citrate binds
to calcium
XR:
Radiopaque
Increase fluid
Alkalinize
u e >7.5
urine
5
Pot Citrate
Struvite
XR:
Magnesium
Radiopaque
Commonly
UpH: >7.0
seen in
women with
UTI
Proteus,
psuedomonas
, providencia
Hypercitrauria
Renal
Potassium
citrate
Can recur
rapidly!
Perc Neph
Periop abx
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Imaging of Stone in GU Tract
They come in all shapes and sizes!
Hematuria Definition
• 3 RBCs/HPF on two of three urinalysis
• First morning specimen is best
• One or more episodes of gross hematuria
• One or more episodes of high-grade microscopic
hematuria (>100 RBCs/ HPF)
Hematuria False Positives
Hematuria False Negatives
• Myoglobinuria
• High vitamin C intake
• Hemoglobinuria
• Presence of reducing substance
• Povidone/iodine contamination
• Drugs that may cause red urine:
• Pyridium, phenytoin, ibuprofen, levodopa, methyldopa,
nitrofurantoin, phenacetin, quinine, rifampin, sulfamethoxazole,
chloroquine
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Hematuria: Differential Diagnosis
Hematuria Work Up
• Numonic – SHITTT! (Know)
• Stones
• Hemoglobinopathies
• Infection
• Trauma
• Tumor
• Tuberculosis
• History/PE
• BPH – Benign Prostatic Hypertrophy (Hyperplasia)
• Imaging- US, IVP, CT, MRI (Gold Standard is CT)
• Urinalysis
• Urine culture: ALWAYS SEND URINE CULTURE!
• 24 Urine for protein
• CBC- blood loss vs infection
• Chemistries- renal function, electrolyte, PT, PTT
• Cystoscopy +/- RPG
• Renal biopsy
Hematuria Take Home Points
Bladder Cancer- TCC and CIS
• SH*T cubed (know)
Clinical Findings
Lab Test
Treatment
• Urine culture
Hematuria
UA: hematuria,pyuria
Intravesical chemo: BCG
• Imaging
Irritative voiding
symptoms
US, CT, URI: detect
defects in bladder
Surgery: TURBT initial
• Cystoscopy
Palpation of tumor
Cystourethroscopy and
biopsy
Radiotherapy
Asymptomatic (painless)
chemotherapy
Painless hematuria is bladder cancer until proven otherwise!
Bladder Cancer
Renal Cell Carcinoma
Clinical findings
Lab Test
Treatment
Hematuria
Adenocarinoma
Surgery: radical
nephrectomy primary tx
Flank pain/abd mass
UA: hematuria
S&S of mets: cough,
bone pain
Erythrocytosis
Systemic symptoms:
fever, weight loss
Anemia
Chemotherapy: not very
effective
Hypercalcemia
CT: most useful
US: determine
solid/cystic
XR: chest and bone scan
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Renal Cell Carcinoma
Wilm’s Tumor (WT)
• Also called Nephroblastoma
• First described by Max Wilms in 1889
• Surgery and radiation were mainstay of therapy in frist
half of 20th century (1915)
• Use
U off actinomycin
ti
i ushered
h d iin modern
d
era off
chemotherapy
• WT is most common GU tumor in children with incidence
of 8:1,000,000
• More than 75% of time, age at diagnosis is <5yrs
• Male=Female, but blacks>whites
Clinical presentation of WT
WT Staging: National Wilm’s Tumor Study
• Healthy child with abdominal mass
• I- confinded tumor, total resection
• Hematuria found <25% and is usually microscopic only
• II- outside capsule (bx,spill), total resection
• Imaging is essential
• Ultrasound – solid renal lesion, status of renal veins and IVC
• CTCT excellent
ll t evall off contralateral
t l t l kidney,
kid
liliver and
d gross
lymphadenopathy, baseline eval of chest
• III- incomplete resection, massive spill, + LN
• IV- distant mets (hematogenous)
• V- Bilateral tumors
• Survival in stages I-III is >90%
• Adjuvant chemotherapy with 2-3 drug treatment is used in
all patients
Wilm’s Tumor
Prostate Cancer
Clinical Findings
Lab Test
Treatment
Most are asymptomatic
PSA: 0-4 (normal range)
Radical Prostatectomy
Open vs Robotic
Focal nodules or
hardened areas on
prostate
p
ostate e
exam
a
Level of PSA is not
necessarily diagnostic
Radiation therapy: IGRT
Brachytherapy
Obstructive voiding
pattern
TRUS prostate w/biopsy
Sample from apex, mid
and base
Cryotherapy – freezing
of prostate
Lymphedema
XR: tumors ( CT and
bone scan)
Hormone ablation: ADT
#1 Cancer of Men in the U.S.!!
Do annual DRE and PSA starting age 50.
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Testicular Carcinoma- Primary Tumor
Clinical findings
Lab Test
Treatment
Rare disease: 19-35 yo
AFP (alphafeta protein)
Beta- HCG
Surgery: radical
orchidectomy/PLND
90-95% germ cell tumors US: mass intra/extra
testicular
Radiation therapy:
seminomas low stage
Seminoma: never
produce AFP
XR: chest,
chest abdomen
abdomen,
pelvis
Chemotherapy:
seminomas high stage
Most common right
testicle
CT: chest, abdomen,
pelvis
Painless nodule,
heaviness in testicle
S&S of mets: cough,
back pain, lower
extremity edema
Cryptorchidism: Undescended Testicle
Incidence of Cryptorchidism
• “Hidden Testis”
• One of most common human disorders
• Failure of testis to descend into the scrotum
• At birth
• 3.4% full term infants
• 30.3% premature infants (esp. low birth weight)
• Testes may descent once babies gain weight and get older
• No racial propensity
• Associated with certain chromosomal abnormalities
• At 1 year
• 0.8% -1.5%
• 75% full term and 95% premature UDT spontaneously descent by 1
yr
• Most that descend do so within the first 3 months
Incidence of Cryptorchidism
Imaging of UDT
• Cremasteric reflex is most active during the 2nd through
• Ultrasound
• Helpful if testis is in inguinal canal
7th years of life
• Retractile testes are inadvertently diagnosed as UDT (most
common misdiagnosis)
• 3%
% of p
pts with UDT- one or both testes are absent
• 10% bilateral UDT
• CT and MRI
• Useful in locating bilateral UDT
• Expensive and difficult in young child
• Radiation exposure
• Reliability is better in older children
• Accuracy of radiologic tests – 44%
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Complications of UDT
Complications of UDT
• Neoplasia
• Orchiopexy is recommended between 1 and 1 ½ yrs
• Torsion (very painful, twisting of testicle that cuts off blood
supply)
• Unknown whether this will deter subsequent cancer
• Increased incidence due to abnormality of testis and its mesentery
• Prevents ultrastructural changes
• Greatest incidence post-pubertal (12-18yrs) when testis increase in
• 20% of testicular tumors in pts with UDT develop in contralateral
testis
• In bilateral UDT, 15% chance of tumor development in opposite
testis
size
• More than 50% will be found to have a tumor
• Abdominal pain and empty hemiscrotum
• Diagnosis should be considered in a man with abdominal pain and
empty hemiscrotum
Complications of UDT
Treatment of Cryptorchidism
• Hernia
• 90% have hernia sacs
• Indications for orchiopexy
• Permanently corrects a visible defect
• Prevent psychopathologic tendencies at school age
• Make testis easily palpable
• Enhance future fertility
y
• Infertility
• Testicular maldescent retards production of spermatozoa
• Fertility in bilateral UDT is poor
• The highter and longer the testis is out of the scrotum, the greater
the likelihood of seminiferous tubule damage
• Men with unilateral UDT have lower sperm counts
• Most patients with bilateral UDT exhibit normal androgenization
• Indications for orchiectomy
• Inability to successfully place the testis in the scrotum
• Older post pubertal patients
• Intersex conditions with a dysgenetic testis
• Patient’s choice
• Testis is grossly abnormal
Take Home Message on UDT
Phimosis/Paraphimosis
Definition
Considerations
Treatment
• Cryptorchidism is one of the most common human
Phimosis
Inability to retract
foreskin over
glans penis
Can lead to
venous
congestion and
tissue damage
Infection
Small hemostat
passed into
foreskin orifice to
dilate it and
deliver glans
p
penis,
Circumcision
Dorsal slit
Paraphimosis
Entrapment and
inability of
foreskin to be
pulled back over
the glans penis in
uncircumcised
males
True emergency
Can result in
penile necrosis
Manual reduction
after 5 minutes of
ice in exam glove
Push glans penis
under foreskin
while holding
foreskin in place
Dorsal slit
disorders
• Cooler environment needed for viable mature
spermatozoa
• 75% full term and 95% premature UDT spontaneously
descend by 1 yr, most within first 3 months
• Orchiopexy is recommended between 1 and 1 ½ yrs
• 67-92% success rate with orchiopexy, varying by location
and length from scrotum
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Phimosis/Paraphimosis
Hydrocele
• Collection of serous fluid in scrotum in up to 1% of males
• Usually asymptomatic and superior to testicles
• Transilluminate – light shines through it
• Most pediatric cases are congenital can be from trauma,
orchitis
hiti or epididymitis
idid iti
• Get CBC, UA and scrotal ultrasound
• Usually no acute treatment needed
• Rarely is surgery indicated
Varicocele
• Bulging/swelling of spermatic vein
• “Bag of worms”
• Cluster of varicose veins
• More prominent on left
•S
Surgical
i l iintervention
t
ti if painful
i f l
• Or possible infertility suspected
BPH= Benign Prostatic Hyperplasia
BPH – signs and symptoms
• Benign growth of prostate that increases with age
• Nocturia
• Urgency/frequency
• Stream stops and starts
• Hesitancy
• High PVR
• Azotemia
• Urinary retention
• Enlarged prostate on DRE
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Work up for BPH
International Prostate Symptom Score
• PSA- prostate specific antigen (0-4)
• DRE- digital rectal exam
• PVR-bladder distention, post void residual (<200cc,
>300cc cath)
• Uroflow
U fl
• UA- rule out infection
• UDS- urodynamic study (<15ml/s w/125cc voided-
obstruction)
• IPSS – mild 0-7, moderate 8-19, severe 20-35
Management and Treatment of BPH
Treatment of BPH
• Mild symptoms- watchful waiting
• Alpha blockers- relax smooth muscle
• Terozosin (Hytrin)
• Doxazosin (Cardura)
• Tamsulosin (Flomax)
• Alfuzosin (Uroxatrol)
(
)
• Silodosin (Rapaflo)
• Moderate to severe symptoms
• Medications- mainstay of therapy
• Alpha blockers
• 5
5-alpha
a p a reductace
educ ace inhibitors
b os
• MIT- minimally invasive therapy
• TUNA
• TUMT
• Laser
• Surgery
• TURP- gold standard
• TUIP
• Prostatectomy- for larger glands
• 5-alpha reductace inhibitors (5ARIs)- shrink prostate
• Finasteride (Proscar)
• Dutasteride (Avodart)
• PDE5 Inibitors
• Tadalafil (Cialis daily 5mg)
Surgical Treatment of BPH
Erectile Dysfunction (ED)
• TURP: transurethral resection of prostate
• 90% retrograde ejaculation
• Higher risk bleeding
• Consistent inability to maintain an erection with sufficient
• TUIP: transurethral incision of prostate
• Better from younger men
• Pt with elevated bladder neck
• Less morbidity
• Prostatectomy
• Reserved for those with large prostates
• Have failed all other therapies
rigidity to allow sexual intercourse
• Causes
• Medications-anticholinergics, narcotics, BP meds, antihistamines
• Psychological- 10% (90% organic)
• Vascular disease-CAD, HTN, DM
• Drug abuse- ETOH, nicotine, opiates
• Hormonal disease-pituatary, thyroid, adrenal gonadal
• Neurologic disorder- MS, tumors, syphilis, parkinson’s
• Iatrogenic-prostatectomy, vascular, back surgery
• Trauma- disc and spinal cord injury
• Treatment
• Conservative vs Medications vs surgery
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Treatment of ED
Treatment of ED
• Conservative
• Increase exercise
• Quit smoking – most common cause of ED
• Quit alcohol
• Healthy
y diet
• Adequate sleep
• Psychosexual counseling
• Medications- increase blood flow
• Oral – Sildinafil (Viagra), Tadalafil (Cialis), Vardenafil (Levitra,
Staxyn)
• Vasoactive therapy – direct injection of prostaglandin
• Alprostadil urethral suppository
• Understand the problem
• Remove anxiety
• Teach communication skills
• Teach permission giving
• Hormonal replacement- increase libido
• Testosterone, DHEA
• Devices
• Vacuum erection device (VED)
• Surgery
• Penile prosthesis
• Vascular reconstruction
Questions?
• A 68 yr old man has urgency, post void dribbling and
nocturia. He is diagnosed with BPH. What is the preferred
oral therapy?
• A: Sildenafil
• B: Ginsing
g
• C: Nifedipine
• D: Clonidine
• E: Doxazosin
Questions?
Question?
• A 56 yr old man has just passed a calcium kidney stone.
• Which of the following is considered to be the most
Evaluation reveals hypercalciuria without hypercalcemia.
Which of the following is the preferred therapy?
important risk fact for urinary bladder cancer?
• A: cyclamate ingestion
• A: Parathyroidectomy
• B: coffee consumption
• B: High
g p
protein diet
• C: acetaminophen
p
ingestion
g
• C: Oral administration of furosemide
• D: cigarette smoking
• D: Oral administration of hydrochorithiazide
• E: strontium exposure
• E. Oral administration of acetozolamide
12