UA & Body Fluids
A patient with uncontrolled diabetes mellitus will most likely have:
-pale yellow urine with high specific gravity
-dark yellow urine with high specific gravity
-pale yellow urine with low specific gravity
-dark yellow urine with low specific gravity
pale yellow urine with high specific gravity
what factor served as a carrier for factor VIII?
Factor IX
tissue factor
vWF
Factor V
vWF
What is the location of B cell maturation?
Bone marrow
The optimal incubator temperature for isolation of the Campylobacter jejuni/coli group is:
1. 4c
2. 20c
3. 25c
4. 42c
42c
: Campfire in sketchy
The conversion of glucose or other hexoses into lactate or pyruvate is called:
Glycolysis
If testing cannot be performed within an hour of collection, urine samples should be:
Refrigerated
A hemophiliac male and a normal female can produce a:
female carrier
male carrier
male hemophiliac
normal female
female carrier
To which of the following classes do the antibodies that cause hemolytic disease of the newborn belong?
IgG
: IgG antibody crosses the placenta.
Shigella species characteristically are:
1. Nonmotile
2. Urease Positive
3. Oxidase-Positive
4. lactose fermenters
Nonmotile
A pregnant woman is with symptoms of thirst, frequent urination or unexplained weight loss should have which of the following tests performed? What diagnosis is suspected and most likely?
1. Tolbutamide test
2. Lactose Tolerance test
3. Epinephrin tolerance test
4. Glucose tolerance test
Glucose tolerance test; Gestational Diabetes
Urine from a 50-year-old patient with severe hepatic disease is reported as having a amber or dark brown color. The color of the sample is most likely caused by the presence of:
1. Biliverdin
2. Conjugated Bilirubin
3. Melanin
4. Unconjugated Bilirubin
conjugated bilirubin
What is the factor VIII level in a hemophilia patient with spontaneous bleeding?
5-10%
<1%
20-30%
10-20%
<1%
The autoantibody most often implicated in Paroxysmal Cold Hemoglobinuria (PCH) is a cold reactive:
1. IgG anti-P
2. IgM anti-P
3. IgG anti-I
4. IgM anti-I
cold reactive, IgG, anti-P
The most frequent cause of prosthetic heaty valve infections occurring within 2-3 months after surgery is:
1.S. pneumoniae
2.S. pyogenes
3.S. epidermidis
4.S. saprophyticus
Staphylococcus epidermidis
: Refer back to Sketchy with the heart shaped valve under the counter.
A patient has the following test results:
Calcium: Increased
Phosphate: Decreased
Parathyroid Hormone: Increased
The patient most likely has:
Hyperparathyroidism
: PTH will pull calcium from the bone and into circulation and also facilitates the excretion of phosphate.
Isosthenuria is associated with a specific gravity that is fixed around:
- 1.001
- 1.010
- 1.020
- 1.040
1.010
: After passing through the glomerulus, the plasma filtrate has a specific gravity of 1.010, an inability to effectively concentrate the urine results in a fixed specific gravity of 1.010. termed isosthenuria, associated with renal failure.
The philidelphia chromosome is formed by a translocation between:
chromosome 22 and 9
chromosome 22 and 6
chromosome 21 and 9
chromosome 21 and 6
How many units of red blood cells are required to raise teh hematcrit of a 70kg nonbleeding man from 24% to 30%?
2
: 1 unit will raise the Hct by 3%; 1 unit can raise the hgb by 1g/dL
The organism most commonly associated with neonatal purulent meningitis is:
1. S. pneumoniae
2. Gorup B strep
3. Hemophilus influenzae
4. Neisseria meningitis
Group B Strep (S. agalactiae)
: All are potential causes of meningitis
An increase in serum acetone is indicative if a defect in the metabolism of:
Carbohydrates
: Increased ketones is found in cases of decreased use of carbohydrates, such as in diabetes.
Which of the following metabolic diseases will urine turn dark brown to black upon standing?
1. Phenylketonuria
2. Alkaptonuria
3. Maple syrup urine disease
4. Diabetic ketoacidosis
Alkaptonuria
: Is an inborn error in metabolism of phenylalanine leading to the accumulation of homogentisic acid (HGA) and as the sample sits out and becomes more alkaline, HGA will create a dark brown to black color change.
What protein is commonly defective in hereditary elliptocytosis?
Ankyrin
elliptocin
spectrin
Band 4.1
Spectrin
The results of the Keilhauer-Betke stain indicate fetomaternal hemorrhage of 35mL of whole blood. How many vials of Rh immune globulin would be required?
1
2
3
4
2
: 1 vial can cover 30mL of whole blood so divide 35 by 30 and round down to 1. Then add one for safety.
*15mL of packed red cells is covered by 1 vial of Rh immune globulin
Which test can be used to diagnose infection and confirm eradication of H. pylori?
1.Hippurate hydrolysis
2.Urea breath test
3.DNase
4.String test
Urea Breath Test
: You slayed...this was also an MLS question
Zinc protoporphyrin or free erythrocyte protoporphyrin measurements are useful to assess blood concentrations of:
: Congratulations if you got this right, it's considered an MLS level questions!!! <3