उत्तरों सहित प्रयोगशाला मान और इलेक्ट्रोलाइट वर्कशीट

What is the typical range of urine pH?

1. AAbout 1.0–2.0
2. BAbout 9.0–11.0
3. CAbout 4.5–8.0
4. DAbout 7.35–7.45

How does dehydration usually affect the hematocrit?

1. AIt makes it zero
2. BIt lowers it
3. CIt has no effect
4. DIt raises it

A blood lactate level above about which value is usually considered raised in an adult?

1. A20 mmol/L
2. B10 mmol/L
3. C2 mmol/L
4. D0.2 mmol/L

Which change in clotting tests is normal in late pregnancy?

1. AaPTT doubles from baseline
2. BPlatelets rise above 600 × 10³/µL
3. CFibrinogen and D-dimer rise
4. DINR rises to about 3.0

A urine culture is ordered for a patient with an indwelling urinary catheter. How should the nurse collect the sample?

1. AAspirate from the sampling port with a sterile syringe
2. BDisconnect the catheter from the tubing and let it drain
3. CRemove the catheter and culture the catheter tip
4. DPour urine from the drainage bag into a sterile cup

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

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

A patient on clozapine reports a sore throat and fever. The ANC is 400/µL (0.4 × 10⁹/L). What should the nurse do?

1. AHold the clozapine and report the result at once
2. BHalve the dose and give it with a throat lozenge
3. CGive the dose with food to protect the stomach
4. DGive the next dose and recheck the ANC next month

A woman with preeclampsia is receiving IV magnesium sulfate. Her urine output has fallen and her creatinine is rising. Why is this a concern?

1. AMagnesium is broken down by the liver, so it will stop working soon
2. BMagnesium is excreted by the kidneys, so it can build up to toxic levels
3. CMagnesium causes potassium loss, so the kidneys release more fluid
4. DPoor kidney function makes the magnesium level fall quickly