6601 Exam 6 Study Guide
with 100% correct answers
What are the indications for HIV and HCV point of care testing? I.e.,
which populations should be screened?
When are these tests not appropriate?
What does a positive/negative point of care HIV & HCV test mean
and what counseling should be provided to a patient based on those
results?
Indications: Screening high-risk populations (e.g., IV drug users,
individuals with multiple sexual partners).
Inappropriate Times: Not appropriate during the window period
immediately after exposure.
Positive/Negative Test: A positive result indicates likely infection; a
negative result doesn't exclude recent exposure and may need
confirmatory testing. (Reactive word preferred over positive)
Counseling: Positive results require further confirmatory tests and
counseling regarding risk reduction and follow-up care. Negative
results necessitate education on preventive measures.
ABG: which values are associated w/ metabolic and respiratory
acidosis/alkalosis? (only considering uncompensated)
HINT: ROME - respiratory opposite, metabolic equal.
Metabolic - look at HCO3, respiratory - look at pCO2
Metabolic Acidosis/Alkalosis: pH values outside the normal range
(7.35-7.45) indicate metabolic acidosis (low pH) or alkalosis (high
pH).
Respiratory Acidosis/Alkalosis: PaCO2 levels outside the normal
range (35-45 mmHg) indicate respiratory acidosis (high PaCO2) or
alkalosis (low PaCO2).
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Which hormone test(s) are done for Cushing syndrome and Cushing
disease?
Low index of suspicion - One of the following:
Late-night salivary cortisol (2 readings), 24-hour urinary free
cortisol (2 readings), or dexamethasone suppression test (DST)
(given at 11pm, blood dawn at 8am for cortisol; normally cortisol is
suppressed to <2mcg/dL
High index of suspicion - two or three of the above tests
Is there anything special about timing for adrenal and male/female
hormone testing?
Yes - variance due to circadian/diurnal rhythms
LH: 11am-3pm on 10th day of menstrual cycle
Testosterone: 8-10 am
Salivary cortisol: 11pm-12am for Cushings, or 8am and 4pm
Serum Cortisol: 8am and 4pm
with 100% correct answers
What are the indications for HIV and HCV point of care testing? I.e.,
which populations should be screened?
When are these tests not appropriate?
What does a positive/negative point of care HIV & HCV test mean
and what counseling should be provided to a patient based on those
results?
Indications: Screening high-risk populations (e.g., IV drug users,
individuals with multiple sexual partners).
Inappropriate Times: Not appropriate during the window period
immediately after exposure.
Positive/Negative Test: A positive result indicates likely infection; a
negative result doesn't exclude recent exposure and may need
confirmatory testing. (Reactive word preferred over positive)
Counseling: Positive results require further confirmatory tests and
counseling regarding risk reduction and follow-up care. Negative
results necessitate education on preventive measures.
ABG: which values are associated w/ metabolic and respiratory
acidosis/alkalosis? (only considering uncompensated)
HINT: ROME - respiratory opposite, metabolic equal.
Metabolic - look at HCO3, respiratory - look at pCO2
Metabolic Acidosis/Alkalosis: pH values outside the normal range
(7.35-7.45) indicate metabolic acidosis (low pH) or alkalosis (high
pH).
Respiratory Acidosis/Alkalosis: PaCO2 levels outside the normal
range (35-45 mmHg) indicate respiratory acidosis (high PaCO2) or
alkalosis (low PaCO2).
, Previous
Play
Next
Rewind 10 seconds
Move forward 10 seconds
Unmute
0:00
/
0:15
Full screen
Brainpower
Read More
Which hormone test(s) are done for Cushing syndrome and Cushing
disease?
Low index of suspicion - One of the following:
Late-night salivary cortisol (2 readings), 24-hour urinary free
cortisol (2 readings), or dexamethasone suppression test (DST)
(given at 11pm, blood dawn at 8am for cortisol; normally cortisol is
suppressed to <2mcg/dL
High index of suspicion - two or three of the above tests
Is there anything special about timing for adrenal and male/female
hormone testing?
Yes - variance due to circadian/diurnal rhythms
LH: 11am-3pm on 10th day of menstrual cycle
Testosterone: 8-10 am
Salivary cortisol: 11pm-12am for Cushings, or 8am and 4pm
Serum Cortisol: 8am and 4pm
