Illustrated in the photomicrograph is the tail portion of an adult worm of a filarial nematode as it
may be observed in a peripheral blood smear. These worms measure up to 300 um in length and
commonly inhabit the lymphatics. This nematode species more commonly involves the
lymphatics of the inguinal region resulting in swelling below the knee in what is known as
elephantiasis. The species indicated in this exercise can be presumptively determined by the
orientation of nuclei within the tail sections. From the nematode species listed below, indicate
the most likely species identification
A) Brugia malayi
B) Wuchereria bancrofti
C) Loa Loa
D) Dirofilaria immitis Correct Answer: A) Brugia malayi
The results which would be MOST consistent with macro-amylasemia are?
A) Normal serum amylase and elevated urine amylase values
B) Increased serum amylase and normal to low urine amylase values
C) Increased serum and increased urine amylase values
D) Normal serum and normal urine amylase values Correct Answer: B) Increased serum
amylase and normal to low urine amylase values
Which of the following describes the Westgard multi-rule 2^2S?
A) Two control data points are within +/- 2s
B) One control data point falls outside +/- and a second point falls outside -2s
C) Two consecutive data points fall outside +/- 2SD
D) Two consecutive data points fall inside +2s
E) Two points are within 2SD Correct Answer: C) Two consecutive data points fall outside +/-
2SD
For infants born to Rh negative females, a test for weak D is optional when initial D typing
shows the newborn to be Rh negative
True/False Correct Answer: False
The most common rapid slide test (MONOSPOT) for infectious mononucleosis employs:
A) Horse erythrocytes
B) Sheep erythrocytes
,C) Intact beef erythrocytes
D) None of the above Correct Answer: A) Horse erythrocytes
In addition to Romanowsky stain, which one of the following would be useful in the routine
evaluation of a bone marrow?
A) Chloroacetate esterase
B) Periodic acid-Schiff (PAS)
C) Prussian blue
D) Sudan black B Correct Answer: C) Prussian blue
The bacterial species represented by the positive test illustrated in the photograph of a 5% sheep
blood agar plate cross streaked with a hemolytic strain of SA has been associated with each of
the following conditions except:
A) Toxic shock syndrome
B) UTI in pregnant women
C) Osteomyelitis in infant
D) Carcinoma of the colon Correct Answer: D) Carcinoma of the colon
The ratio of whole blood to anticoagulant is very important in the PT assay; at which hematocrit
level should the standard anticoagulant volume be adjusted?
A) <50%
B) >75%
C) >55%
D) <35% Correct Answer: C) >55%
Which of the following is a cause of metabolic alkalosis?
A) Late stage of Salicylate poisoning
B) Uncontrolled diabetes mellitus
C) Renal failure
D) Excessive vomiting Correct Answer: D) Excessive vomiting
Materials such as strong acids and bases are classified as:
A) Corrosives
B) Chemical irritants
C) Flammable liquids
D) Carcinogens Correct Answer: A) Corrosives
What is the maximum interval during which a recipient sample may be used for crossmatching if
the patient has been recently transfused, has been pregnant within the last three months, or if
relevant medical/transfusion history is unknown?
, A) 1 day
B) 3 days
C) 1 week
D) 1 month
E) 31 days Correct Answer: B) 3 days
The estimation of hyaluronic acid concentration by measurement of viscosity is useful in
evaluating which type of fluid?
A) Cerebrospinal
B) Peritoneal
C) Pleural
D) Synovial Correct Answer: D) Synovial
The assay which is most helpful in identifying specific allergens is:
A) Complement fixation
B) C-reactive proteins
C) RIA
D) RAST Correct Answer: D) RAST
A hapten is only antigenic when it is coupled with which of the following:
A) Enzymes
B) Proteins
C) Lymphocytes
D) Thrombocytes Correct Answer: B) Proteins
Blood safety standards such as AABB Standards directly specify that an electronic crossmatch
cannot be done when an Rh negative female has an anti-D consistent with antenatal RhIg
administration
True/False Correct Answer: False
The bacterial species commonly causing bronchopneumonia in foals, that can cause a slowly
progressive tuberculosis-like pulmonary infection in humans is:
A) Nocardia asteroides
B) Streptococcus equi
C) Rhodococcus equi
D) Moraxella catarrhalis Correct Answer: C) Rhodococcus equi
Which of the following barriers are recommended in microbiology laboratories where
manipulation of biosafety level 3 agens is performed?
A) Class 1 or 2 biological safety cabinet (BSC)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Hosmerit. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.
