Nokea
Nursing care for a client undergoing chemotherapy includes assessment for signs of bone marrow depression. Which finding accounts for some of the symptoms related to bone marrow depression?
- A. erythrocytosis
- B. leukocytosis
- C. polycythemia
- D. thrombocytopenia
Correct Answer: D
Rationale: Thrombocytopenia is an abnormal decrease in the number of platelets, which results in bleeding tendencies. Erythrocytosis is an abnormal increase in the number of circulating red blood cells. Leukocytosis is an increase in the number of white blood cells in the blood. Polycythemia is also an excess of red blood cells and is a synonym for erythrocytosis. With chemotherapy there is a decrease in red and white blood cells, not an increase.
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The 4-year-old with meningitis is to receive ceftriaxone 750 mg IVPB over 30 minutes. The pharmacy provided 750 mg in 50 mL D5W to be infused IVPB through a microdrip infusion system (tubing drop factor 60 gtt/min). At what rate, in gtt per min, should the nurse program the IVPB pump?
Correct Answer: 100
Rationale: Volume to be infused is 50 mL over 30 minutes. Calculate mL/min: 50 mL/ 30 min = 1.6667 mL/min. Convert to gtt/min using the drop factor: 1.6667 mL/min x 60 gtt/mL = 100 gtt/min.
The hospitalized child who has a blood lead level of 50 mcg/dL is to receive succimer 10 mg/kg oral capsule q8h for 5 days. The child weighs 20 kg. Which intervention by the student nurse should be corrected by the observing nurse?
- A. Prepares to give the total dose of one 100-mg capsule with applesauce
- B. Sprinkles the beads of two 100-mg capsules into pudding for administration
- C. Offers fluids frequently during the shift to increase the child's urine output
- D. Explains to a parent that chelation therapy removes the lead from the blood
Correct Answer: A
Rationale: A: The 20-kg child should receive two capsules of succimer (Chemet), not one. Dose (mg) = 20 kg x 10 mg/kg = 200 mg. B: Succimer capsules can be opened and sprinkled on a small amount of food or in liquid to be swallowed; two 100-mg capsules = 200 mg, which is the correct dose. C: Fluids should be increased to prevent renal damage because succimer is excreted by the kidneys. D: Succimer forms a water-soluble compound with lead, allowing urinary elimination of excessive amounts of lead. Lead is removed from the blood, and theoretically some lead is removed from tissues and organs.
The test used to differentiate sickle cell trait from sickle cell disease is:
- A. sickle cell preparation
- B. peripheral smear
- C. sickledex
- D. hemoglobin electrophoresis
Correct Answer: D
Rationale: Hemoglobin electrophoresis identifies the specific hemoglobin types, distinguishing sickle cell trait (HbAS) from sickle cell disease (HbSS).
The LPN needs to determine the client's respiratory rate. What is the best technique to do this?
- A. Tell the client you need to count their respiratory rate.
- B. Subtly watch the client from across the room when they are doing an activity.
- C. Ask the client to sit still for 30 seconds.
- D. Count respirations while pretending to check the client's pulse.
Correct Answer: D
Rationale: You should not tell the client you are counting their respirations, as this may cause them to alter their breathing pattern. Pretending to check a pulse allows you to get close to the client without cluing them in to what you are assessing. Standing across the room is not the best way to assess for respirations as they may be difficult to see.
The child with CF is prescribed vitamin A supplements. Which finding by the clinic nurse indicates that the vitamin has been effective?
- A. Skin is supple and healthy.
- B. Viscosity of secretions is decreased.
- C. Number of bleeding episodes is reduced.
- D. Pancreatic enzyme absorption is increased.
Correct Answer: A
Rationale: A: A water-miscible form of vitamin A is given in children diagnosed with CF because the uptake of the fat-soluble vitamins is decreased. One of the functions of vitamin A is to keep epithelial tissue healthy by aiding the differentiation of specialty cells. B: Other treatments for CF, such as bronchodilators and recombinant human deoxyribonuclease dornase alfa (Pulmozyme), decrease the viscosity of secretions. C: Vitamin K, another fat-soluble vitamin administered in CF, increases coagulation. D: Vitamin A has no effect on pancreatic enzyme absorption.