Which of the following is MOST likely considered a risk factor for extraneural metastasis in primary brain tumors?
- A. age less than 10 year
- B. female gender
- C. ventriculoperitoneal (VP) shunt insertion
- D. supratentorial tumor
Correct Answer: A
Rationale: Younger age is a significant risk factor for extraneural metastasis in pediatric brain tumors.
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What is the Guthrie blood test use to diagnose in the newborn?
- A. Down syndrome
- B. Isoimmunization
- C. PKU
- D. Congenital hypothyroidism (CH)
Correct Answer: C
Rationale: The Guthrie blood test, also known as the newborn screening test, is used to diagnose phenylketonuria (PKU) in newborns. PKU is an inherited metabolic disorder in which the body cannot properly process the amino acid phenylalanine. If left untreated, PKU can lead to intellectual disabilities and other serious health problems. The Guthrie blood test is a simple and effective way to detect PKU early so that treatment can begin promptly to prevent complications.
An African client has been diagnosed with Osteomyelitis. The nurse expects to assess which of the following?
- A. pale, cool, tender skin at site
- B. decreased white blood cell count
- C. positive wound cultures
- D. decreased erythrocyte sedimentation rate
Correct Answer: C
Rationale: Osteomyelitis is an infection of the bone often caused by bacteria. When a client is diagnosed with Osteomyelitis, the nurse would expect to assess for positive wound cultures. This means that the wound site is likely to show growth of infectious organisms, confirming the presence of infection in the bone. A positive wound culture result helps guide appropriate antibiotic therapy to treat the infection effectively. Therefore, option C is the most appropriate assessment finding to expect in a client diagnosed with Osteomyelitis.
HIV antibody testing procedures using a finger stick or venipuncture to obtain whole blood, plasma, or serum, and tests using oral fluid were approved. All the following regarding this test are true EXCEPT
- A. they are simple and accurate as to render the likelihood of an erroneous result by the user negligible
- B. a positive result does not need confirmation by Western blot analysis or immunofluorescence assay
- C. they allow women who have not been tested or are unaware of their HIV status to reduce the risk of mother-to-child transmission of antiretroviral therapy implementation
- D. they significantly reduce the risk of mother-to-child transmission
Correct Answer: B
Rationale: A positive result from rapid HIV tests still requires confirmation with more specific tests like Western blot or immunofluorescence assay.
Ms. CC's laboratory values indicate hemoconcentration secondary to fluid loss. Which of the following intravenous solutions would be most appropriate during initial fluid replacement therapy?
- A. 10% dextrose and saline
- B. 5% dextrose and water
- C. 5% dextrose and water with 60 mEq
- D. Distilled water KCl
Correct Answer: A
Rationale: In hemoconcentration due to fluid loss, the primary goal is to rapidly expand the intravascular volume and correct the deficit. The most appropriate intravenous solution for initial fluid replacement therapy in this case is 10% dextrose and saline. This solution is isotonic, which means it has an osmolarity close to that of blood and is effective in quickly restoring intravascular volume without causing significant shifts in electrolytes. The saline component helps to replenish lost electrolytes while the dextrose provides energy and helps prevent hypoglycemia. The combination of dextrose and saline is beneficial for addressing both intravascular volume depletion and dehydration causing hemoconcentration.
You are examining an infant with multiple cutaneous hemangiomas; you suspect involvement of internal organs. The MOST common site of visceral involvement by hemangiomas is
- A. brain
- B. heart
- C. lung
- D. liver
Correct Answer: D
Rationale: Liver is the most common site of visceral involvement by hemangiomas.