Chapter 45 & 47
which of the following is an abnormal value for a differential
%50-%70 basophils
the specific gravity of most urine samples falls between
1.010 and 1.024
which of the following is a normal adult WBC count
10.000cells/mm3
which of the following urine specimens are used in diabetes screening and for home diabetes testing programs
2 hour postprandial urine specimens
which of the following is a normal H&H for a female
36% and 14 g/dL
while Mr. Chakrabartis hemocrit sample is spinning in the centrifuge, you perform an automated hemoglobin test on a sample of his blood and record the value as 15g/dL. you do a quick mental calculationand expect that the hemocrit value will be approximately
45%
a medical assistant instructs a patient to collect a first morning specimen for which of the following test?
All of the above
using capillary blood from a finger, the cholestech LDX analyzer is capable of measuring which of the following?
All of the above
a blood test that analyzes the ability of the kidneys to perform their function is the
BUN
microscopically, which of the following cells have large dark blue black granules and contain histamine
Basophils
urine suspected of having high levels of which substance should be stored in a dark place before testing?
Bilirubin
which of the following is not detected in a liver panel test
CBC
which of the following measures the PT according to the time it takes the blood to form a fibrin clot
CLIA waved
increases in the RBC count are found in which of the following?
Dehydration
a child whose urine has a mousy smell most likely would be diagnosed with
PKU
Dr. lim orders a CPK draw for Mr. Roberts what do elevated CPK levels indicate
Possible MI
one of the first detectable signs of renal disease is
Proteinura
a hematocrit reading of 37 indicates what
RBCs account for 37% of the total blood volume
in the microscopic observation of urine sediment, yeast most resembles
Red Blood Cells
casts in a urine specimen develop in what part of the urinary tract?
Renal
the specific gravity of a urine specimen read 1.035. this value is considered
abnormally high
granular leukocytes
act as phagocytes
if a urine specimen cannot be analyzed within 1 hour, the best course of action is to?
add a chemical preservative
hormones detected in a thyroid panel include
all of the above
one of the first detectable signs of liver disease is
bilirubinuria
after centrifugation on a microhematocrit test, which of the following will be found in the center of the tube
both B and C
Troponin is a component of a ----panel
cardiac
which of the following are tubular structures found in urine and composed mainly of mucoprotein secreted by certain cells of the kidney
casts
a turbid urine sample means that the specimen is
cloudy
you are examining a patients urinalysis report, which of the following factors is normal
color: light amber
erythrocytes have a typical--------shape because of-----------
concave, their lack of a nucleus
which of the following tests is used to determine renal function
creatinine
a 24 hour urine sample is ordered to determine which of the following?
creatinine clearance rates
a cloudy urine specimen may be the result of which of the following?
crystals
hemoglobin A1c is measured to monitor
diabetes
polyuria is common in which of the following clinical situations
diabetes mellitus
which component of the complete blood count is not necessary to calculate the red cell indices
differential
what is the last portion of the nephron that the filtrate travels through
distal convoluted tube
which of the following leukocytes are associated with allergies
eosinophils
which of the following tests is used for the initial screening of a patient for diabetes type 2
fasting blood glucose
A urine pregnancy test result is positive
from implantation of the fertilized egg through delivery
a properly prepared wedge smear
has blood covering one half to three quarters of the slide
which of the following are the most numerous type of T cell
helper t cells
which department of the laboratory performs H&H tests
hematology
which of the following is a common finding in cystitis and in individuals passing kidney stones
hematuria
when is administration of Rho(D) immune globulin absolutely necessary
if an Rh-negative mother gives birth to an Rh-positive stillborn
on a chemical analysis, a urine specimen from a female with urinary tract infection most likely reveals?
increased pH, increased nitrate, and increased leukocyte esterase
an ammonia or putrid smell in the urine can be caused by which of the following
infection
the buffy coat
is white
which statement is true about HDL
it transports cholesterol
you open a urine sample for testing and immediately detect a fruity odor, which test result do you expect to be elevated on chemical analysis
ketones
what is the most common urine test for pregnancy
lateral flow immunoassay
T cells and B cells are a subclassification of which of the following
lymphocytes
which statement is true about leukocytes
neutrophils are the most numerous WBCs in circulation
platelets
none of the above
a urine specimen tested and shown to have a pH of 8.0. this value is
normal
abnormal urine color may be related to which of the following
pathologic factors
TSH levels are assessed to determine the function of what organs
pituitary gland
which of the following makes up approximately 55% of blood by volume
plasma
which of the following substances when found in urine may indicate kidney damage
protein
a urine sample that can be collected at any given time is called a
random sample
which of the following casts always indicate a pathologic condition and are highly diagnostic
red blood cells casts
which of the following is mismatched concerning urine color and the likely cause?
reddish brown: diabetes
which of the following is not a recommendation from the clinical and laboratory standards institute for urine specimens
specimen should not be centrifuged
in performance of a microhematocrit
the open end of the capillary tube should be sealed with clay before centrifuging
which statement is true about the pH of urine?
the urine pH is alkaline if the patient has bacteriuria
when instructing a female patient in how to obtain a clean catch, midstream urine specimen you should tell her to use how many antiseptic towelettes?
three
in emergencies if there is no time for a laboratory to perform a type and cross match which type of blood is administered
type O negative
the reagent strip is highly sensitive to
urinary albumin
a small amount of which of the following is always present in normal urine
urobilinogen
the ESR test results
vary greatly between genders and as people age
which cells are usually oval and may show budding and common in urine of patients with diabetes
yeast cells