Wartości laboratoryjne i elektrolity: karta pracy z odpowiedziami

Które badanie krwi jest zwykle pierwszym badaniem przesiewowym czynności tarczycy?

1. AHormon tyreotropowy (TSH)
2. BWapń w surowicy
3. CHemoglobina glikowana (HbA1c)
4. DKortyzol w surowicy

What is a "critical value" (panic value) in laboratory reporting?

1. AA result that is normal but differs from the patient's last value
2. BAny result that is slightly outside the laboratory reference range
3. CA result that the laboratory could not measure because of a bad sample
4. DA result so abnormal that it may threaten life and needs prompt action

What does the specificity of a diagnostic test describe?

1. AThe proportion of people without the disease who test negative
2. BThe total number of people who take the test each year
3. CThe proportion of people with the disease who test positive
4. DThe cost of the test compared with other tests

Two sets of blood cultures are ordered for a patient with suspected sepsis. How are they best collected?

1. ABoth from the same site, one minute apart, to save time for the patient
2. BFrom two separate venipuncture sites, using strict aseptic technique
3. CAfter the first antibiotic dose, so the infusion is not delayed
4. DFrom the existing IV line while the infusion continues to run

When should a blood sample for a digoxin level be drawn to be interpreted correctly?

1. AAt least 6–8 hours after a dose, often just before the next one
2. BAt any time, because digoxin levels do not change during the day
3. COnly after a meal, because food is needed for absorption
4. DWithin 30 minutes after an oral dose to show the peak level

A patient taking phenazopyridine for bladder pain has bright orange urine. What should the nurse know about urine tests?

1. AThe drug improves the accuracy of all dipsticks
2. BThe color proves blood is present in the urine
3. CThe color shows severe liver failure is present
4. DThe dye can interfere with dipstick color readings

A patient without symptoms has a TSH of 7,5 mIU/L on two occasions with a normal free T₄. Which term fits best?

1. ASecondary hypothyroidism
2. BOvert primary hypothyroidism
3. CSubclinical hyperthyroidism
4. DSubclinical hypothyroidism

A patient with a stable INR on warfarin starts rifampin (rifampicin) for tuberculosis. Two weeks later the INR is 1,3. What is the most likely explanation?

1. ARifampin speeds up warfarin metabolism
2. BRifampin raises the INR, so it is wrong
3. CTuberculosis causes the INR to fall
4. DRifampin contains a lot of vitamin K