• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/25

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

25 Cards in this Set

  • Front
  • Back
You are caring for a newborn infant of a mother who reports a history of syphilis but had uncertain treatment and no follow-up evaluation for her disease. Which of the following is most useful in determining whether the child has congenital syphilis?
Venereal Disease Research Laboratory test (VDRL)

In the newborn, the VDRL may be positive either falsely or because of maternal infection and thus is not useful in screening the newborn. The FTA-ABS is a test specific for syphilis that would be positive in the infant with congenital syphilis and would not be affected by maternal infection unless the disease had been transmitted to the infant; however, there are no currently available recommended commercial tests for FTA-ABS IgM. Thus, in the infant, VDRL titers exceeding those of the mother, along with risk of infection based on the maternal history and findings, determine the need for further testing or treatment. Other findings that support a diagnosis of congenital syphilis include physical or x-ray findings of congenital syphilis, positive CSF VDRL, or elevated CSF cell count or protein. VDRL titers can be followed to determine response to therapy, and with successful therapy should decline. Blood or swab cultures are not helpful in diagnosing syphilis. Dark field microscopy is a useful test for diagnosing syphilis and must be prepared from active lesion
what heart problem is ass with syphilis
aort regurg
tx of syphilis
all moms and infants with positive maternal serology without documented adequate tx with Penicillin
what is common in tx by penicillin
jarish herzheimer reaction
if allergic to penicilline how to tx the syphilis
give doxycycline
what is the best initial test for syphilis
what is thmost accurate test
VDRL

FTA-ABC or dark fieldmicroscopy
primary syphilis
painless, but may be painful after bacterial infection
painless adenopathy
how does the chancre heal
spontaneusly, even without tx
secondary syphilis
rash( palms and soles)
alopecia areata
mucous patches
condyloma lata
tertiary syphilis
neurosyph--- meningo vascular ( stroke from vasculitis)
tabes dorsalis
general paresis- memory and personality change
aortitis ( aort regurge aortic aneurism)
gummas- skin and bone lesion
false+ in syphilis
infect
old age
inject drug use and AIDS
malaria
endocarditis
when titers of VDRL are reliable
at greater than 1:8
lower titers are most likely false+
high titers ( greater than 1;32) rarely are false+
syphilis - tx
primary and second:: single I/M penicillin
oral doxycycline if penicillin alerg

tertiary syphil
IV penicillin
if allerg- desensitize to penicillin
when desensitization is answer in tx of syphilis
neurosyphilis and pregnant
yarisch herxheimer reaction
fever and worse symt after tx

give aspirin and antypyretics
if dark firld is positive what to do
tx, no more testing
A 25-year-old man presents
with a single, indurated, painless ulcer
on the penis that appeared two
days ago. His most recent unprotected
sexual contact was 21 days
before. An immediate rapid plasma
reagin (RPR) test is negative.
. The most likely diagnosis is
Syphilis
what test can be negative in up to 30% of patients at an initial visit for primary syphilis.

2 when The probability of a negative test is increased
Nontreponemal tests RPR, VDRL can be negative in up to 30% of patients at an initial visit for primary syphilis. 2 The probability of a negative test is increased if the patient presents early in the course of primary syphilis.
what test is more sensitive and
is reactive around the time of appearance of the lesion
The FTA-ABS, a treponemal test, is more sensitive and
is reactive around the time of appearance of the lesion
first choice to confirm a diagnosis of syphilis when a chancre
is present.
The dark-field is the
investigation of first choice to confirm a diagnosis of syphilis when a chancre
is present.
Both nontreponemal and treponemal tests will become reactive
within
Both nontreponemal and treponemal tests will become reactive
within three weeks after the chancre has occurred
The incubation
period for syphilis is
The incubation
period for syphilis is between 10 and 90 days, with an average of 21 days.
d/d
1 chancroid
2 Herpetic lesions
3 Donovanosis
4 Lymphogranuloma venereum
1 The lesion typical of chancroid is a large and painful ulcer with undermined borders. Large inguinal adenopathy, often suppurative, is also
present. The incubation period is usually between 4 and 7 days

2 Herpetic lesions are shallow, painful, and multiple

3 Donovanosis is very rare in
developed countries and is characterized by lesions that slowly enlarge, bleed easily on contact, and often have beefy-red granulomatous tissue

4 Lymphogranuloma venereum is also uncommon. It is primarily a disease of
the lymphatic system. Patients often present with complaints related to
inguinal adenopathy. The initial lesion, which is small, shallow, and painless, often goes unnoticed.
Which sexual partners should
be informed of the exposure and
referred for evaluation?
For primary syphilis, sexual partners from the
previous three months since the onset of symptoms should be assessed (6
months for secondary syphilis, and 12 months for early latent
treatment for
syphilis during pregnancy
Penicillin is the only recommended treatment for
syphilis during pregnancy and should be given a least four weeks before
delivery to be effective in treating the fetus.

Regimens are the same as for
nonpregnant women. In this case, it would be prudent to treat as a case of
late latent syphilis (no symptoms consistent with secondary or primary
syphilis, and unable to confirm if early, that is, less than one-year duration).
Women who are allergic should be desensitized under observation and
Epidemiology and Prevention of Communicable Diseases Answers 109
treated with penicillin. A Jarisch-Xerheimer reaction can occur when treating
early syphilis. This may precipitate contractions after the second
trimester, so women should be observed. Erythromycin has an unacceptable
cure rate and is no longer recommended. Doxycycline is contraindicated
during pregnancy. Adequate regimens of ceftriaxone have not been defined.