ASCP ASCP Certifications ASCP-MLT Questions & Answers

• Question 221:

  Triglyceride blood concentrations change significantly when you eat, as opposed to relatively stable levels of cholesterol, HDL, or LDL circulating in the blood. Whenever you eat a meal that contains fat, your triglyceride levels rise, which is why it is important to have a patient fast before the sample is collected.

  Which of the following lipid results would be expected to be FALSELY elevated on a serum specimen from a non-fasting patient?

  A. cholesterol

  B. triglyceride

  C. HDL

  D. LDL (not calculated)

  Correct Answer: B

• Question 222:

  The lactophenol blue mount reveals tiny, ovoid microconidia, arranged in a daisy-head pattern at the tip of a straight conidiophore. This appearance is characteristic of the mold form of Sporothrix schenckii. By moving the focus up and down

  in a microscopic preparation, delicate hair-like attachments may be observed for each conidium.

  The mold form of Coccidioides immitis produces delicate hyphae that break up into arthroconidia separated by empty cells, giving an alternatively staining appearance.

  The mold form of Blastomyces dermatitidis is characterized by the production of single, smooth microconidia, each borne on a single, thin conidiophore ("lollipops").

  The mold form of Histoplasma capsulatum is recognized by the production of large, echinulate macroconidia, appearing as a prickly surface.

  The ovoid microconidia arranged in a daisy-head pattern at the tip of a a straight conidiophore, observed in the photomicrograph on the right, is characteristic of which of the following dimorphic molds?

  A. Sporothrix schenckii

  B. Coccidioides immitis

  C. Blastomyces dermatitidis

  D. Histoplasma capsulatum

  Correct Answer: A

• Question 223:

  1.

  B

  2.

  C

  3.

  A

  Granular casts are composed of plasma protein aggregates and cellular remnants. Granular casts appear as cylinders of coarse, or fine, highly refractive particles. Broad casts or "renal failure' casts are formed in the collecting ducts as the result of urinary stasis and are two to six times the size of other types of casts. Any type of cast can be a broad cast. Broad casts are typically seen in patients with advanced renal failure. Hyaline casts, the type most commonly seen in urine sediment, have a refractive index similar to the urine in which they are suspended. For this reason, hyaline casts will appear almost invisible under brightfield microscopy, but are easily of

  seen by phase-contrast microscopy.

  Match the following descriptions of casts with their appropriate name:

  1.

  Casts with highly refractive particles

  2.

  "Renal failure" cast

  3.

  Low refractive index

  A. Hyaline casts

  B. Granular Casts

  C. Broad

  Correct Answer: ABC

• Question 224:

  Failure to deliver glucose drawn in a serum separator tube (SST) to the laboratory within the recommended time will cause: Question options:

  A. a falsely decreased glucose value

  B. a falsely increased glucose value

  C. glycolysis

  D. both A and C

  Correct Answer: D

• Question 225:

  Animals serve as a reservoir of infection" is the correct answer because Shigella only infects humans while Salmonella is found in many animals. Both have diarrhea as the major symptom. Endotoxin is produced by all gram negative bacteria

  and exotoxin is only produced by Shigella.

  A major difference between Salmonella enterica and Shigella infections is that only in salmonellosis can:

  A. animals serve as a reservoir of infection

  B. diarrhea become the major symptom

  C. endotoxin play a role in disease process

  D. exotoxin produce profuse watery stools

  Correct Answer: A

• Question 226:

  The creatinine clearance for this patient is 100 mL/min.

  Creatinine clearance values are calculated using the following equation:

  Creatinine Clearance (mL / min) = (Urine Creatinine / Serum Creatinine) x Urine Volume (mL) / [ time (hr) x 60 ]

  For this patient Creatinine clearance (mL/min)= (120/1.5) x (1800 / [24 x 60])

  80 x 1800/1440, which is 80 x 1.25, or 100 mL/min

  A 45-year-old male of average height and weight had a serum creatinine of 1.5 mg/dL and urine creatinine was 120 mg/dL; the total volume of urine collected over a 24-hour period was 1,800 mL. Calculate the creatinine clearance for this

  patient in mL/min.

  A. 100

  B. 144

  C. 56

  D. 225

  E. 177

  Correct Answer: A

• Question 227:

  Which of these advancements in the clinical laboratory has led to concerns about patient privacy

  A. high test volumes

  B. staffing with several levels of lab professionals

  C. computers

  D. automated analyzers

  Correct Answer: C

• Question 228:

  The combination of complement C4, C2 and C3 that binds to the antigen-antibody complex in the initial reaction step in the classical pathway of complement activation is called the activation unit.

  Which of the following is the "activation unit" in the classical complement pathway?

  A. C1

  B. C2

  C. C4, C2, C3

  D. C5, C6, C7, C8, C9

  E. C1, C2, C9

  Correct Answer: C

• Question 229:

  Deviations from Beer's Law are caused by:

  A. very low concentration of absorbing material

  B. polychromatic light

  C. very high concentrations of substance being measured in a colorimetric reaction

  D. stray light

  Correct Answer: D

• Question 230:

  Type B blood is found in higher frequency in:

  A. Blacks

  B. Whites

  C. Asians

  D. Black and Asians

  Correct Answer: D