Scheda di esercizi di Valori di laboratorio ed elettroliti con soluzioni

What is a typical reference range for the hematocrit in an adult woman?

1. AAbout 20–28%
2. BAbout 35–45%
3. CAbout 10–15%
4. DAbout 55–65%

What does the term "leukopenia" mean?

1. AA high platelet count
2. BA low white blood cell count
3. CA high white blood cell count
4. DA low red blood cell count

How does dehydration usually affect the hematocrit?

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

A patient has had severe watery diarrhea for 4 days. Which laboratory pattern would the nurse expect?

1. ALow glucose and high magnesium
2. BHigh potassium and high bicarbonate
3. CLow potassium and low bicarbonate
4. DHigh sodium and high calcium

A pregnant woman's blood type is O Rh-negative, and her antibody screen (indirect Coombs test) is negative. What is usually offered at about 28 weeks?

1. AA transfusion of group O Rh-positive red cells
2. BDaily oral iron and folic acid supplements only
3. CAnti-D immunoglobulin (Rho(D) immune globulin)
4. DAn IV dose of vitamin K given for the fetus

A week after a splenectomy, a patient's platelet count is 650 × 10³/µL. What is the best interpretation?

1. AA sign of iron overload from the surgery and transfusion
2. BAn expected rise after splenectomy that increases clot risk
3. CA laboratory error, because platelets fall after splenectomy
4. DA sign of new leukemia that needs immediate chemotherapy

The nurse teaches a patient with thrombocytopenia (platelets 25 × 10³/µL) about home safety. Which statement shows a need for further teaching?

1. A"I'll use an electric razor to shave"
2. B"I'll blow my nose gently, not forcefully"
3. C"I'll take aspirin if I get a headache"
4. D"I'll use a soft-bristled toothbrush"

A patient's bedside glucose meter shows "HI" (above its measuring range). The patient is drowsy. What should the nurse do?

1. ARecord "HI" and repeat the meter test at the next scheduled time
2. BGive oral glucose in case the reading is wrong and the patient is low
3. CSend a venous sample to the lab and inform the provider at once
4. DAssume the meter is broken and give the usual insulin dose