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Hypothyroid
case
orders : cbc for anemia, ua, cxr, esr, ecg, serum
electrolytes(hyponatremia),
tsh which is elevated, t4 which is low, resin t3 or t4 uptake(low) riu :
low s. cholesterol, creatine kinase, LFT: increased, b sugar: hypoglycemia,
antimicrosomal n antithyroglobulin: increased in hashimotos
Management. levothyroxine, rx of anemia, consultn from
endocrino thyroid specialist.
**A 29-year-old female
dancer with no significant medical history comes to your office with several
days of urinary frequency, burning, and urgency. In addition, she notes a
cloudy discoloration of her urine. She uses no medications, has no allergies,
and has not seen a physician for several years.
initial approach??how would
you use the history and physical examination to help you localize the
infection?
dysuria can occur because of infection at any level.
Temperatures above 102.2oF, nausea, vomiting, chills, and other systemic
symptoms are more suggestive of pyelonephritis, although this is not specific.
Pyelonephritis characteristically gives back pain and tenderness to palpation
at the costovertebral angle. Cystitis often results in suprapubic pain and
tenderness. Urethritis can give a urethral discharge that can be clear, white,
or yellow. Clinically distinguishing between urethritis and cystitis is
difficult
On physical examination this patient had a temperature
of (100.4oF) and suprapubic tenderness. There was no back or costovertebral
angle tenderness, and there was no discharge noted from the urethra.
Investigations??
urinalysis is the best initial test. Leucocyte
esterase test on a dipstick is very sensitive and specific for detecting WBC.
THis is quite useful as UTI is rare in the absence of WBC in urine.
Microscopy A single white cell visible on a high
power field is suggestive of infection.
Gram stain A single bacterium visible on an unspun
urine specimen viewed on a high power field correlates to growth on a culture
of >100,000 bacteria/milliliter (ml) of urine. A urine culture growing
>100,000 bacteria/ml of an organism from voided urine is strongly associated
with the diagnosis of UTI. On a catheterized specimen, >100 bacteria per ml
is considered positive, and any growth from a percutaneous aspiration of the
bladder (suprapubic tap) is considered abnormal.
Imaging studies are not essential in the first infection in adults.
This patient had a urinalysis that was strongly positive for white blood cells
and mildly positive for red blood cells and protein. A urine culture was
deferred because the patient's income was not sufficient for health insurance,
and she wished to defer the cost of a urine culture. Clinclly she was dx as
cystitis.
What is the optimal treatment?
This patient is treated with two double-strength,
trimethoprim/sulfamethoxazole tablets. She leaves the following morning
for a series of dance performances along the eastern coast of the
admit the patient to the hospital and obtain a
urinalysis, urine culture, and blood cultures.
intravenous antibiotics because of both the severity
of symptoms and the nausea and vomiting.
Initially, the choice of antibiotics is largely empiric because a urine culture
will take at least 24 hours to yield any growth and an
additional 24 hours to speciate the organism and obtain sensitivities. Some
guidance can be obtained from Gram stain.
What would be your choice for intravenous antibiotics at this time, and on what
do you base the choice?
Initially, the choice of antibiotics is largely empiric because a urine culture
will take at least 24 hours to yield any growth and an additional 24 hours to
speciate the organism and obtain sensitivities. The choice can be guided
somewhat by a knowledge of the most common
bacteriology described above as well as a gram stain of the urine. Although it
will not give the specific species, a gram stain will allow you to
differentiate the gram-negative bacilli such as E. coli and Klebsiella from gram-positive
cocci such as enterococcus and S. saprophyticus.
A urinalysis reveals 100 WBCs per HPF, 2+ protein, and
2+ blood. Gram stain of this patient's urine reveals gram-negative rods.
Many agents are active against gram-negative bacilli: third-generation
cephalosporins (e.g., ceftazidime, cefotaxime, or ceftriaxone), ciprofloxacin,
extended spectrum penicillins (e.g., ticarcillin, piperacillin, or
mezlocillin), ticarcillin/clavulanate, or aztreonam would all likely be
effective. Second-generation cephalosporins would also likely be adequate
The addition of an aminoglycoside in combination with
any of the agents listed above is appropriate in those cases where a
concomitant bacteremia, a very severe infection, or possibly a resistant
organism is suspected.
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