Final Exam Pt. 2

A green colored sample of amnionic fluid is likely due to:

Meconium

HDFN is caused by:

 

An immune response from the mother against the fetus

Which of the following is NOT a measure of fetal lung maturity?

AFP

Which of the following is an indicator of potential neural tube defects?

AFP

Which of the following is an indicator of pregnancy and/or potential Down Syndrome in a developing fetus?

HCG

Which technique is used to determine extent/severity of HDFN?

Liley Graph / OD450

"PMN's" are:

 White blood cells

A light brown BAL fluid would be most indicative of:

Proteinosis

In a healthy individual which cells is likely to be observed the greatest amount in a BAL?

Macrophages

PMN's will appear what color when gram stained?

(assume that a perfect gram stain was made)

 

Safranin/magenta/red

What is the minimum volume required to be recovered for a BAL?

 

5 mL

Which of the following is NOT a characteristic cause of elevated neutrophils observed in a BAL?

 

Granulomatous disease

Within what time frame must an unpreserved BAL be analyzed for cellular components?

 

1 hour

A KOH addition wet prep should always be performed along with a standard (no KOH added) wet prep.

True

A fishy odor noted when doing a wet prep is likely indicative of:

 

Bacterial vaginosis

KOH in a wet prep will NOT remove which of the following?

Yeast

Normal bacteria that may be observed in a vaginal secretion sample typically have what morphology and gram stain characteristic?

 

Large, rod-shaped, gram-positive

Presence of large numbers of squamous epithelial cells on a vaginal wet prep is abnormal.

False

The pH of normal vaginal secretions is generally:

Acidic

What is the common method for verifying a potential Trichomonas vaginalis  infection? 

 

Direct microscopic examination via wet prep

What is the preferred method for verifying a potential Chlamydia trachomatis  infection? 

 

Molecular methods

What microscopic observation is characteristically indicative of bacterial vaginosis?

 

Presence of clue cells

Which of the following describes a typical healthy vaginal secretion?

 

White with a flocculent discharge

Which visual indicator is indicative of a potential Chlamydia trachomatis infection?

 

Yellow, opaque cervical discharge

Which visual indicator is indicative of a potential Trichomonas vaginalis infection?

 

Yellow-green, frothy, adherent discharge

Which visual indicator is indicative of a potential general bacterial infection?

 

White-to-gray discharge

Which visual indicator is indicative of a potential yeast infection?

 

Cottage cheese like discharge

A healthy semen sample will demonstrate what motility? 

Note: Select the lowest cutoff value

 

>50%

Measurement of which of the following enzymes can be used to confirm the presence of seminal fluid?

 

Acid phosphatase

Sperm are most likely to remain viable under what pH conditions?

 

Basic pH

The dilution factor used for a sperm count is:

 

1:20

To perform a sperm count using a Neubauer hemacytometer, one would use:

Note: This is the semen sample specific method, though a traditional body fluid method could also be used.

 

5 squares within the central RBC square

Which of the following is the most appropriate sample for sputum culture?

WBCs >25: Epi’s <10