Misc Labs final Flashcards
HCG is present in _______ days after conception
a. 3-10
b. 5-10
c. 10-14
d. 3-7
a. 3-10
In what case may beta HCG be present in a male
with the presence of germ cell tumors
Beta HCG is normally used to measure what?
a. fertility
b. gestational age
c. pregnancy (pos or neg)
d. sex of fetus
b. gestational age
urine needs to be concentrated for an accurate pregnancy test. The ideal specific gravity is
a. 1.005
b. 1.010
c. 1.250
d. 1.004
a. 1.005
Wet mount used to be the reccomended test for the presence of trichomonas in vaginal fluid. Now the reccomended test is _____
Nucleic acid testing (NAAT) though the wet mount is still widely used in conjuction with NAAT
Presence of clue cells in saline is indicative of
a. trichomonas
b. yeast infection
c. BV (gardneralla vaginosis)
d. chlamydia
c. BV (gardneralla vaginosis)
what is on this wet mount
clue cells. BV!
What is on this wet mount
trichomonas. The small round cells will have flagella and they will move around the slide
You suspect your patient has a yeast infection. First you do a wet mount and you see no abnormal cells. You have one more thing to do…… what is the preperation of the slide for your next step?
KOH
what is on this slide and what makes you sure of the dx?
Candida (yeast)
You can see the hyphal element (strings… aka spaghetti and meatball appearance)
An indication that a pt may have prostate cancer on a PSA test?
a PSA level greater than 4ng/ml
The age that is reccomended to start PSA screenings in the general male population
a. 40
b. 50
c. 65
d. 35
b. 50
(40 if there is fam hx)
Where is the prostate is PSA present?
lumen
just to review……
IgM is _______ infection
IgG is ______infection or ______
IgM is acute infection
IgG is past infection or vaccination
if both IgG and IgM are present this means…
That there is a current infection and the body is actively creating antibodies (good job immune system)
True or false……. there is a high rate of ANA positvity with Lupus and mixed connective tissue disease?
True
Which marker is indicative of drug induced lupus
a. Anti-histone
b. Anti-dsDNA
c. Anti nucleolar
D. Anti RNP
a. antihistone
What antibodies are commonly presnt in sjogrens dz? check all that apply
a. ANA
b. Anticentromere
C. Anti-Ro
d. Anti-La
e. Anti-scl- 70
a,c,d
ANA
Anti-Ro
Anti-La
Rheumatoid factor is not _____ for RA but is usually positive
specific
Rheumatoid factor can also be present in…..
other autoimmune dz, viral infections, endocarditis, TB, hepatitis, mono, syphilis, leukemia
What is usually present long before the onset of symptoms of RA
Anti cyclic citruillinated peptide antibodies
(anti CCP)
Name the acute phase reactants
CRP
ESR
fibrinogen
haptoglobin
prealbumin
ferritin
Bacterial infections will show ______ CRP
and Viral will show ______CRP
a. increased, increased
b. Decreased, decreased
c. increased, no change
D. no change, decreased
C. increased with bacterial, no significant change with viral
Fun fact: with covid ESR and CRP both ______
increase
ESR takes how long?
a. 30 minutes
b. its a rapid bedside test
c. 2 hours
d. 1 hour
d. 1 hour. CRP is much faster
You have a patient and you take a sample of the sinovial fluid from their knee. The sample opaque, a yellow green color, and has a WBC of 50,000. After seeing this you are concerned about what?
Infectious process
You have a patient and you test their sinovial fluid as well (strange day in your primary care clinic) the fluid is not very viscous and is a yellow ish color. What is your first thought?
This is an inflammitory process, but you probably need more info
You sent out that sinovial fluid for some additional analyisis. It came back with monosodium urate crystals present. You know that if you obtain a uric acid level it may be normal despite what is present in the sinovial fluid. What condition is this consistent with
Gout
pseudogout is identified by what?
a. uric acid levels that are low
b. calcium pyrophosphate crystals
c. monosodium urate crystals
d. calcified sediment in urine
b. calcium pyrophosphate crystals
d-dimer measures what….
fibrin degredation products
You have a patient that is highly suspicious for a DVT according to the wells criteria. Should you or should you not obtain a d-dimer
You should not
D-dimer is a _______test
A. rule in
b. rule out
c. a waste of time
d. a test of high sensitivity and specificity
b. it is a rule out test. A negative test rules out a clot 95-99% of the time.
A test that is 95% sensitive means that
a. 5 % of people will test postive but not actually have the disease or condition
b. 5% of those tested will test negative but actually have the disease
c. 5% of the tests are contaminated and will have to be thrown out
d. the test will be a negative result 95% of the time.
b. 5% of those tested will test negative but actually have the disease
