Nokea
In statistical methodology:
- A. The median and mean are different when the population distribution is skewed
- B. Mode refers to the value that occurs with the highest frequency
- C. The value of 'r' (coefficient of variation) ranges from -1 to +1
- D. Incidence is defined as the number of cases seen in the population at any given period of time
Correct Answer: A
Rationale: The median and mean differ in skewed distributions because the mean is influenced by extreme values, while the median is not.
You may also like to solve these questions
The MOST common cause of pulmonary hypertension in pediatric patients is
- A. idiopathic pulmonary hypertension
- B. pulmonary venoocclusive disease
- C. left-sided valvular heart disease
- D. chronic obstructive pulmonary disease
Correct Answer: A
Rationale: Idiopathic pulmonary hypertension is a rare but recognized cause of pulmonary hypertension in children.
The nurse is obtaining a client's fingerstick glucose level. After gently milking the client's finger, the nurse observes that the distal tip of the finger appears reddened and engorged. What action should the nurse take?
- A. Collect the blood sample
- B. Assess radial pulse volume
- C. Apply pressure to the site
- D. Select another finger
Correct Answer: A
Rationale: The reddened and engorged appearance is due to increased blood flow, and the sample can still be collected.
Which is/are true?
- A. Babies are able to respond to sounds in utero
- B. Full term babies at birth are unable to follow a large object with their eyes
- C. A 6-week-old infant would be able to follow a large object through an arc of 135°
- D. Growth velocity of head decreases with age
Correct Answer: A
Rationale: Babies can respond to sounds in utero, and head growth velocity does decrease with age. Full-term babies can follow large objects, and a 6-week-old can follow objects through a smaller arc.
In a child with scabies, which of the following is the most appropriate treatment?
- A. Permethrin
- B. Benzoyl peroxide
- C. Hydrocortisone
- D. Calamine lotion
Correct Answer: A
Rationale: Permethrin cream is the most effective treatment for scabies, as it targets the mites causing the infestation.
Concerning insulin-dependent diabetes mellitus in children:
- A. Microangiopathic changes are rare before puberty
- B. Isophane is shorter acting than soluble insulin
- C. Lipohypertrophy is more common than lipo-atrophy
- D. Fructosamine can be used to monitor glucose control
Correct Answer: A
Rationale: Microangiopathic changes are indeed rare before puberty in children with insulin-dependent diabetes mellitus. Isophane is not shorter acting than soluble insulin, and fructosamine is used to monitor glucose control.