Increased concentrations of alpha-fetoprotein (AFP) in adults are MOST characteristically associated with:

Microcontainer collection order of draw differs from regular peripheral blood collection order of draw. When performing a capillary draw, the lavender top container is obtained first. This decreases the possibility of clots in the container which would invalidate the results of the complete blood count test.

After the lavender is drawn, other containers with anticoagulants would be collected, and containers without anticoagulants would be collected last.

A phlebotomist must perform a skin puncture to obtain capillary specimens for a complete blood count (CBC), a plasma-based chemistry test, and a serum-based immunology test. The microcollection containers that will be used are lavender top containing EDTA anticoagulant, green top containing heparin anticoagulant, and gold top containing no anticoagulant. Which microcollection container should be collected first?

Which of the following CD markers is NOT present on a normal mature T cell?

Since hemoglobin is measured spectrophotometrically on hematology analzyers, interference from lipemia or icteric specimens can lead to decreased light detected and measured through the sample and therefore inaccurate hemoglobin results occur.

On an electronic cell counter, hemoglobin determination may be falsely elevated caused by the presence of:

Deviations from Beer ' s Law are caused by:

One method of calculating a glomerular filtration rate is using creatinine and urine volume to determine creatinine clearance. The equation is as follows:

Creatinine Clearance = (urine creatinine X urine flow rate) / plasma creatinine; where urine flow rate = volume in mL /24 hours x h/60 min)

In this case = creatinine clearance = 124 X (2200/24 x hour/60) / 2 = 94.7 or 95 ml/min

What is the glomerular filtration rate for a patient with a serum creatinine of 2 mg/dL, if the urine creatinine was 124 mg/dL and the urine volume was 2.2 L/24 hrs?

Myoglobin rises typically within 2-4 hours after a myocardial infarction and stay elevated for days, with a peak at the 6-9-hour mark post-MI. After myoglobin, troponin is the next fastest to rise afer a mycardial infarction and can rise within 3-4 hours with a peak around 12 hours post-MI. LD (8-12 hours, 24-48 hour peak) and CK (4-6 hours with peak at 24-36 hours) will also rise after MI, but are not as fast to rise as myoglobin and troponin.

Chemistry

A patient is admitted to the hospital with acute chest pain, but which of the following cardiac markers will be elevated FIRST if the patient had an MI?

When making a platelet concentrate, the proper procedure is to start with a low centrifugation of the whole blood bag. After the plasma is removed, it is centrifuged again at a higher speed to separate the platelet portion from the plasma portion.

Blood bank

The following steps must be followed in preparation of a platelet concentrate:

Identify the following cell types by matching them with their respective image.

Class C fires involve:

Question options:

The correct answer is Trichophyton rubrum. The tiny microconidia are lined up in a " birds on the fence " arrangement along the hyphal strand transversing the field of view (yellow arrows). Two pencil-shaped, smooth walled macroconidia are also seen in the lower left field of view (red arrows).

Trichophyton verrucosum may produce microconidia in small quantities. However, they are irregularly arranged with little tendency to line up along the hyphae. Antler hyphae and string bean macroconidia are characteristic of this species.

One of the key characteristics in the identification of Epidermophyton floccosum is the inability of this dermatophyte to produce microconidia. Two to four-celled, club-shaped macroconidia are produced, usually in clusters of two or three.

The profusion of tiny microconidia lining up along the hyphae in this photomicrograph is characteristic of which of the following organisms?

A casual blood glucose > /= 200 mg/dL on a patient with symptoms and an A1C > /= 6.5% meet diagnostic criteria for diabetes.

Chemistry

A physician is evaluating a 45-year-old obese male for diabetes and orders a plasma glucose at time of evaluation and a HbA1C one week later. The patient has a family history of diabetes and currently exhibits symptoms of diabetes.

What would be the best course of action if these are the blood glucose results?

Casual Blood Glucose: 208 mg/dL

HbA1C one week later: 7.2%