A nurse is caring for a 7-year-old child who has a fever, tachycardia, and low oxygen saturation. The nurse reviews the child's laboratory results and notes the following:
- WBC count 15,000/mm^3^ (normal range: 5,000 to 10,000/mm^3^)
- Hgb 8 g/dL (normal range: 10 to 15.5 g/dL)
- Hct 32% (normal range: 32% to 44%)
The nurse should suspect that the child has which of the following conditions?
Leukemia.
Sickle cell anemia.
Hemophilia.
Iron deficiency anemia.
The Correct Answer is B
Choice A reason: Leukemia is not a probable condition, as it is a cancer of the white blood cells that causes abnormal proliferation and accumulation of immature or dysfunctional white blood cells. The child has a high WBC count, which can indicate leukemia, but not necessarily. The child does not have other signs of leukemia, such as bleeding, bruising, bone pain, or lymphadenopathy.
Choice B reason: Sickle cell anemia is a possible condition, as it is an inherited disorder that affects the shape and function of the red blood cells, causing them to become sickle-shaped and rigid. The child has a low Hgb and Hct, which can indicate anemia, and a fever, tachycardia, and low oxygen saturation, which can indicate a sickle cell crisis. A sickle cell crisis is a condition where the sickle-shaped red blood cells block the blood flow and cause tissue ischemia and inflammation.
Choice C reason: Hemophilia is not a likely condition, as it is an inherited disorder that affects the clotting factors, causing impaired blood clotting and increased risk of bleeding. The child has a low Hgb and Hct, which can indicate anemia, but not necessarily hemophilia. The child does not have other signs of hemophilia, such as bleeding, bruising, hemarthrosis, or hematuria.
Choice D reason: Iron deficiency anemia is not a definite condition, as it is a type of anemia that occurs when the body does not have enough iron to produce hemoglobin, the protein that carries oxygen in the blood. The child has a low Hgb and Hct, which can indicate iron deficiency anemia, but not necessarily. The child does not have other signs of iron deficiency anemia, such as pallor, fatigue, weakness, or pica.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Intravenous immunoglobulin is a likely prescription, as it is used to treat Kawasaki disease, which is a rare but serious condition that causes inflammation of the blood vessels in children. The toddler has many signs and symptoms of Kawasaki disease, such as high fever, irritability, red eyes, dry lips, strawberry tongue, swollen hands and feet, rash, and enlarged lymph node. Intravenous immunoglobulin can reduce the risk of complications, such as coronary artery aneurysms, which can be life-threatening.
Choice B reason: Oral acyclovir is not a probable prescription, as it is used to treat viral infections, such as herpes simplex or varicella zoster, which are not the main problems of the toddler. The toddler has no evidence of a viral infection, such as blisters, vesicles, or crusts.
Choice C reason: Intramuscular penicillin is not a likely prescription, as it is used to treat bacterial infections, such as streptococcal pharyngitis or syphilis, which are not the main problems of the toddler. The toddler has no signs of a bacterial infection, such as purulent discharge, foul odor, or localized inflammation.
Choice D reason: Topical hydrocortisone is not a helpful prescription, as it is used to treat skin conditions, such as eczema or dermatitis, which are not the main problems of the toddler. The toddler has a rash that is caused by the inflammation of the blood vessels, not by an allergic or irritant reaction. Topical hydrocortisone may also worsen the rash or cause skin thinning or infection.
Correct Answer is B
Explanation
Choice A reason: Haemophilus influenzae type b (Hib) vaccine is not the correct choice, as it is usually given to children at 2, 4, 6, and 12 to 15 months of age. A 4-year-old child should have already completed the Hib vaccine series.
Choice B reason: Varicella (VAR) vaccine is the correct choice, as it is recommended for children at 12 to 15 months and 4 to 6 years of age. A 4-year-old child is due for the second dose of the VAR vaccine.
Choice C reason: Hepatitis B (HepB) vaccine is not the correct choice, as it is usually given to children at birth, 1 to 2 months, and 6 to 18 months of age. A 4-year-old child should have already completed the HepB vaccine series.
Choice D reason: Meningococcal (MCV4) vaccine is not the correct choice, as it is not routinely recommended for children younger than 11 years of age. MCV4 vaccine is given to children at 11 to 12 years and 16 years of age, or to children with certain high-risk conditions.
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