The type of anaemia characterised by injury or destruction to the bone marrow is:
a. pernicious anaemia.
b. aplastic anaemia.
c. iron-deficiency anaemia.
d. osteoblast anaemia.
b
Aplastic anaemia often has no cause (is idiopathic) but
can be caused by medications or toxic substances. Aplasticanaemia leads to a decrease in the production of all blood
cells (pancytopaenia), not just red cells.
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In reviewing product materials, which reported precision confidence interval (CI) would make the nurse researcher interested in purchasing the product?
a. CI of 2-100 mm b. CI of 15-75 mm c. CI of 25-75 mm d. CI of 2-5 mm
The nurse is using the New Ballard Score to assess the gestational age of a newborn delivered 4 hours ago. The infant's gestational age is 33 weeks based on early ultrasound and last menstrual period. The nurse expects the infant to exhibit:
1. Full sole creases, nails extending beyond the fingertips, scarf sign showing the elbow beyond the midline 2. Testes located deep in the scrotum, rugae covering the scrotum, vernix covering the entire body 3. Ear cartilage folded over, lanugo present over much of the body, some flexion of arms and legs at rest 4. 1 cm breast bud, peeling skin and veins not visible, rapid recoil of legs and arms to extension
The penicillins act by:
1. weakening the bacterial cell wall to the point that the cell ruptures and dies. 2. inhibiting protein synthesis and suppressing bacterial growth. 3. disrupting bacterial protein synthesis, destroying the bacterial cell. 4. disrupting biochemical reactions, resulting in the death of the cell.
The school-age child, diagnosed with a medulloblastoma, will receive intrathecal chemotherapy injections after surgery. Which rationale for this type of chemotherapy administration should the nurse include in the medication teaching?
1. It reduces side effects. 2. It does not require the child being "stuck." 3. Many chemotherapy drugs do not cross the blood–brain barrier. 4. Intrathecal administration is less expensive than intravenous administration.