Scheda di esercizi di Valori di laboratorio ed elettroliti con soluzioni

Un peso specifico urinario di 1,035 suggerisce molto probabilmente:

1. AUn'infezione delle vie urinarie
2. BUrina concentrata, come nella disidratazione
3. CUrina molto diluita, come nel diabete insipido
4. DUrina normale per ogni paziente

Which statement about HDL cholesterol is correct?

1. AHigher levels are the main cause of plaque in the arteries
2. BIt is the same as the fasting triglyceride level
3. CHigher levels are linked to a lower risk of heart disease
4. DIt should ideally be kept below 40 mg/dL (1,0 mmol/L)

Qual è un tipico intervallo di riferimento negli adulti per il potassio sierico?

1. A3,5–5,0 mEq/L
2. B135–145 mEq/L
3. C6,0–8,0 mEq/L
4. D1,3–2,1 mEq/L

When blood is drawn from a central venous catheter, why is a small volume of blood usually discarded first, according to policy?

1. ATo avoid diluting the sample with flush or infusion fluid
2. BTo check that the catheter tip is still in the right vein
3. CTo remove blood clots that form in all central lines
4. DTo lower the patient's hemoglobin for a blood transfusion

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

1. APour urine from the drainage bag into a sterile cup
2. BAspirate from the sampling port with a sterile syringe
3. CDisconnect the catheter from the tubing and let it drain
4. DRemove the catheter and culture the catheter tip

A patient has taken a proton pump inhibitor (such as omeprazole) for many years and now has muscle cramps and tremor. Which electrolyte is most likely to be low?

1. ASodium
2. BMagnesium
3. CChloride
4. DPhosphate

A patient on a stable dose of levothyroxine now has a TSH of 9,8 mIU/L. She recently started taking her calcium and iron supplements with her morning levothyroxine. What is the most likely explanation?

1. AThe supplements are reducing levothyroxine absorption
2. BThe supplements are causing an overactive thyroid gland
3. CThe result is normal for a person on levothyroxine therapy
4. DThe TSH is low, showing that the dose is now too high

Ten minutes into a red cell transfusion, a patient develops fever, chills, low back pain and dark urine. After stopping the transfusion, what should the nurse do next?

1. AFlush the remaining blood through the line with the IV fluid to finish it
2. BRestart the transfusion more slowly after giving an antipyretic drug
3. CDiscard the blood bag and tubing in the clinical waste to stop exposure
4. DKeep the IV open with normal saline using new tubing and call the provider