Dx Procedures Flashcards
RAIU means
Radioactive Iodine Uptake
RAIU route of administration
PO or IV
RAIU 1st measurement is in ___ hours
2 to 4 hours
RAIU 2nd measurement is in ___ hours
24
RAIU 1st measurement normal values
3-10%
increased in hyperthyroidism
decreased in hypothyroidism
RAIU 2nd measurement normal values
5-30%
increased in hyperthyroidism
decreased in hypothyroidism
RAIU needs precaution due to its radioactivity. T/F
F
RAUI’s dose is small and harmless
Contraindication: Food that may elevate RAIU result
iodine-rich food: seafood, shellfish, crabs
Contraindication: Drugs that may elevate RAIU result (ELBP)
Estrogen, lithium, barbiturates, phenothiazines
Diet status before RAIU
NPO
After RAIU, patient can have food after ___ hours
1 hour after oral dose
After RAUI, a __-hour urine specimen is collected
24 hour
RAUI is contraindicated in pregnancy. T/F
T
T3 is also known as
Triiodothyronine
Triiodothyronine is a serum test used to diagnose
hyperthyroidism
Normal T3 levels
80-200 ng/dl
T3 values can be increased by
estrogen, oral contraceptives
T3 values can be decreased by
phenytoin, lithium, propanolol
T4 is also known as
Thyroxine
Thyroxine is a serum test used to diagnose
hyperthyroidism
Normal T4 levels
1-2.3 ng/dl
T4 values can be increased by
estrogen, oral contraceptives
T4 values can be decreased by
phenytoin, lithium, propanolol
Diagnostic test used to identify nodules or growths
Thyroid Scan
Chemical administered before scanning the thyroid gland
Technetium
Technetium is administered via
PO or IV
Technetium is given __ min before thyroid scan
30 min
Thyroid scan is safe and harmless. T/F
T
During thyroid scan, iodine-containing medications is halted for __ days before the test
14 days
otherwise it may result to false positives
Diet status before thyroid scan
NPO
If iodine is consumed before thyroid scan, the patient will fast for an additional __ min
45 min
A patient for thyroid scan cannot receive radiographic contrast agent for __ months
3 months
otherwise it may result to false positive
The level of radioactive medication in thyroid scan is safe. T/F
T
Thyroid scan is contraindicated to
pregnancy
OGTT/GTT means
Oral Glucose Tolerance Test or Glucose Tolerance Test
GTT aids in the diagnosis of
diabetes mellitus
GTT is confirmed after __ hours of ingesting glucose higher than __ mg/dl
2 hours; 200 mg/dl
A patient to undergo GTT shall eat a diet with at least ___ g of carbohydrates for __ days
150g; 3 days
A patient to undergo GTT shall avoid ___, ___, and ___ for __ hours
alcohol, coffee, smoking; 36 hours
Diet status before GTT
NPO 10-16 hours
For GTT, strenous exercise is avoided for __ hours before and after testing
8 hours
Morning insulin or oral hypoglycemic medication is withheld before GTT. T/F
T
In GTT, blood samples will be drawn at __ min intervals for a minimum of __ hours
30-min; 3 hours