Nokea
Regarding the physical growth of middle childhood (6-11 yr), all are true EXCEPT
- A. 3-3.5 kg weight increment/yr
- B. 6-7 cm height increment/yr
- C. brain myelinization stops by 8 yr
- D. deciduous tooth falls by 6 yr
Correct Answer: C
Rationale: Brain myelinization continues beyond 8 years.
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A client is being treated for acute pyelonephritis and will undergo laboratory tests. These tests are expected to help determine the clients BUN, creatinine, and serum electrolyte levels. Why should the nurse evaluate these test results?
- A. To determine the severity of the disorder
- B. To identify signs of fluid retention
- C. To determine the location of discomfort
- D. To determine clients response to therapy
Correct Answer: A
Rationale: Evaluating the client's BUN, creatinine, and serum electrolyte levels when being treated for acute pyelonephritis is crucial in determining the severity of the disorder. BUN and creatinine levels are indicators of renal function, where elevated levels may suggest impaired kidney function due to inflammation in the kidneys from pyelonephritis. Abnormal electrolyte levels, such as potassium and sodium, may also reflect the impact of the infection on renal function. Therefore, monitoring these test results helps healthcare providers assess how well the kidneys are functioning and the severity of the pyelonephritis to guide appropriate treatment decisions.
Which action best explains the main role of surfactant in the neonate?
- A. Assists with ciliary body maturation in the upper airways
- B. Helps maintain a rhythmic breathing pattern
- C. Promotes clearing mucus from the respiratory tract
- D. Helps the lungs remain expanded after the initiation of breathing
Correct Answer: D
Rationale: Surfactant plays a crucial role in the neonate by helping the lungs remain expanded after the initiation of breathing. Surfactant is a substance produced by type II alveolar cells in the lungs that reduces surface tension in the alveoli. By lowering surface tension, surfactant prevents the alveoli from collapsing during expiration, thereby helping the lungs to remain expanded and functional. This function is particularly important in neonates, whose lungs are not yet fully developed and may have difficulty maintaining lung expansion without adequate levels of surfactant. Failure to produce enough surfactant can lead to respiratory distress syndrome in premature infants.
Regarding the physical growth of middle childhood (6-11 yr), all are true EXCEPT
- A. 3-3.5 kg weight increment/yr
- B. 6-7 cm height increment/yr
- C. brain myelinization stops by 8 yr
- D. deciduous tooth falls by 6 yr
Correct Answer: C
Rationale: Brain myelinization continues beyond 8 years.
The parent of a 3-year-old with suspected Wilms tumor says, 'How could I have missed a lump this big?' Which is the best response?
- A. Don't be hard on yourself; it's easy to miss something growing slowly.
- B. I understand you're upset; earlier detection might have improved prognosis.
- C. It takes a trained professional to notice such a lump.
- D. This tumor grows rapidly and may not have been noticeable just a few days ago.
Correct Answer: D
Rationale: Wilms tumor can grow very quickly, so a lump that was not evident previously may become noticeable in a short period.
Nurse Raymond is handling a group of student nurses and he is teaching them about fluids and electrolytes. He is correct when he says that a substance moves from an area of higher concentration, this is:
- A. osmosis
- B. filtration
- C. diffusion
- D. active transport
Correct Answer: C
Rationale: Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration. In the context of fluids and electrolytes, this process plays a crucial role in maintaining the balance of these substances in the body. Nurse Raymond is correct in stating that diffusion is the mechanism by which substances move down their concentration gradient. Osmosis involves the movement of water across a semipermeable membrane, filtration is the process of separating substances based on size through a filtering mechanism, and active transport requires energy to move substances against their concentration gradient.