[5] Common Infections in Obstetrics Flashcards

1
Q

What test indication would indicate an Acute Infection of Hepatitis B

A

IgM Anti-HBc

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2
Q

Why do we test for Anti-HAV IgM for diagnosing HBV

A

To exclude acute viral Hepatitis A on top of Chronic Hepatitis B

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3
Q

Optimal period of time to give active and passive vaccine to neonates

A

Within 12 hours

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4
Q

Do all pregnant women have to be screened for ASB?

A

Yes, and a URINE CULTURE has to be done, not a urinalysis

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5
Q

Most common urinary tract complication in pregnant women

A

Acute Pyelonephritis

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6
Q

Most common pathogen of Acute Pyelonephritis

A

E. Coli

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7
Q

Why can you not give Nitrofurantoin during 3rd Term Pregnancy/After 34th week

A

Affects glutathione reductase activity leading to hemolytic anemia in babies with G6PD deficiency

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8
Q

Why do you not give Co-amoxiclav during the 1st and 3rd Trimester?

A

Necrotizing Enterocolitis without prolonging pregnancy

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9
Q

Why do you not give Cotrimoxazole 1st and 3rd Trimester?

A

Sulfonamides may cross the placenta and are excreted in the milk causing kernicterus

During pregnancy they may interfere with folic acid metabolism

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10
Q

Most common cause of Pneumonia in children

A

Haemophilus influenzae

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11
Q

Good quality Sputum CS

A

25 LPF

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12
Q

Most common STI causing Vaginitis

A

Triochomonas vaginalis

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13
Q

Trichomonas is what kind of an organism?

A

Protozoan

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14
Q

How do you give Metronidazole during pregnancy with TV?

A

2 grams single dose

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15
Q

How do you give Clindamycin during pregnancy with TV?

A

300 mg 2x/day for 7 days

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16
Q

Function of Benzathine in relation to Penicillin

A

Extends its half life

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17
Q

[Interpret]

HBsAG ( - )
Total Anti-HBc ( - )
Anti-HBs ( - )

A

Susceptible

18
Q

[Interpret]

HBsAG ( + )
Total Anti-HBc ( + )
IgM Anti-HBc ( + )
Anti-HBs ( - )

A

Acute Infection

19
Q

Treatment for HB Positive Pregnant Mothers

A

Tenofovir > Telbivudine > Lamivudine

20
Q

How do you characterize high quality of evidence, strong recommendation for Asymptomatic Bacteriuria

A

2 consecutive voided or one catheterized urine specimen with bacterial strain greater than 100,000 CFU/mL

21
Q

Antibiotics for ASB in Pregnancy

A
Nitrofurantoin
Co-Amoxiclav
Cephalexin
Fosfomycin
Cotrimoxazole
22
Q

Duration of treatment for acute uncomplicated pyelonephritis

23
Q

Pleural effusion is present in 50% of pneumonia cases caused by this organism

A

H. influenza

24
Q

Management of Low Risk CAP

A

Previously Healthy: Amoxicillin

Stable Comorbid Disease: B-Lactam Inhibitor / 2nd Gen Cephalosphorin

25
Management of Moderate Risk CAP
IV Nonpseudomonal B-Lactam + Extended macrolides
26
Management of High Risk CAP
IV Antipneumococcal Antipseudomonal B-Lactam + Macrolide + Aminoglycoside
27
Leading cause of neonatal morbidity and mortality
Preterm Birth
28
Most common pathway of Intrauterine Infection
Ascending route from vagina and cervix
29
Should you administer Metronidazole or Clindamycin for pregnant patients with BV
Clindamycin Metronidazole causes increased risk of preterm births and low birth weight
30
Most common form of Group B Streptococcus disease
Bacteremia (80%)
31
Drug of choice for GBS
Penicillin
32
Diagnostic Test of Choice for Chlamydia
Nucleic Acid Amplification Tests (NAATs: 99-100% specificity)
33
Treatment for Pregnant Women with Chlamydia
Azithromycin 1g PO SD | Amoxicillin 500 mg PO TID x 7 days
34
Diagnostic Method for Gonococcal Infections
Nucleic Acid Amplification Tests | PCRs are highly sensitive and specific
35
First Line Treatment for Gonococcal Infections
Ceftriaxone 250mg IM SD
36
Treatment for Congenital Syphillis
Benzathine Penicillin
37
Recommended Diagnostic Test for Toxoplasmosis
PCR from Amniotic Fluid
38
Treatment for Toxoplasmosis
Spiramycin
39
Kissing Disease is caused by
Cytomegalovirus
40
Most common method of neonatal Herpes Infection
Peripartum
41
Treatment for Herpes Infection
Acyclovir