Nokea
A 6-year-old child has a systolic blood pressure between the 95th and 99th percentile for age, sex, and height and a diastolic blood pressure between the 90th and the 95th percentile on three separate clinic visits. This child's blood pressure is placed in which classification?
- A. normotensive
- B. pre-hypertensive
- C. stage 1 hypertensive
- D. stage 2 hypertensive
Correct Answer: C
Rationale: Stage 1 hypertensive pressure ranges from the 95th percentile or from 120/80 mm Hg to 5 mm Hg above the 99th percentile for age, sex, and height for either systolic or diastolic pressure.
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A client tells the nurse that her biopsy results indicate that the cancer cells are well-differentiated. How should the nurse respond?
- A. Ask the client if the healthcare provider has given her any information about the classification of her cancer
- B. Tell the client that well-differentiated cancer cells usually have a poor prognosis.
- C. Reassure the client that the cancer is not serious.
- D. Encourage the client to seek a second opinion for confirmation of the diagnosis.
Correct Answer: A
Rationale: Well-differentiated cancer cells typically indicate a slower-growing tumor. Clarifying the client's understanding ensures accurate communication and emotional support.
Which is the most common causative agent of bacterial endocarditis?
- A. Staphylococcus albus
- B. Streptococcus hemolyticus
- C. Staphylococcus albicans
- D. Streptococcus viridans
Correct Answer: D
Rationale: S. viridans is the most common causative agent in bacterial (infective) endocarditis.
Nystagmus can be a presenting sign in:
- A. Partial albinism
- B. Retinopathy of prematurity
- C. Acute vestibulitis
- D. Medulloblastoma
Correct Answer: D
Rationale: Medulloblastoma, a type of brain tumor, can present with nystagmus due to its impact on the cerebellum and brainstem.
All the following statements about spontaneous coronary artery dissection are true, except
- A. More common in young females
- B. Proximal coronary involvement associated with immuno-inflammatory disease
- C. Intra-coronary imaging shows 'accordion sign'
- D. Physical stress precipitates it by causing intimal tear
Correct Answer: C
Rationale: The 'accordion sign' is not typically associated with spontaneous coronary artery dissection.
Proteins found in muscle fibres include:
- A. Vimentin
- B. Saccharin
- C. Keratin
- D. Desmin
Correct Answer: D
Rationale: Desmin: Desmin is an intermediate filament protein found in muscle fibers, playing a critical role in maintaining structural integrity and organization within muscle cells.