Nokea
Organogenesis is complete at:
- A. 2 weeks after ovulation.
- B. 6 weeks after ovulation.
- C. 8 weeks after ovulation.
- D. 18 weeks after ovulation.
- E. 20 weeks after ovulation.
Correct Answer: C
Rationale: Organogenesis the process of organ formation occurs during the embryonic period primarily between weeks 3 to 8 after ovulation (or 5 to 10 weeks gestational age). By 8 weeks post-ovulation major organ systems are formed making this the correct answer. Earlier or later weeks do not align with this developmental milestone.
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When caring for a child with measles, which precaution is most appropriate for the nurse to implement?
- A. Standard precautions
- B. Droplet precautions
- C. Contact precautions
- D. Airborne precautions
Correct Answer: D
Rationale: Measles is highly contagious and spreads via airborne transmission, requiring airborne precautions, including a negative-pressure room and N95 respirator use.
The nurse has just assisted with the birth of a full-term infant. The nurse should take which measures immediately to promote parent-infant attachment? Select all that apply.
- A. Have the mother nap before interacting with her newborn.
- B. Dim the lights in the birthing room.
- C. Place the newly delivered infant on the mother’s abdomen.
- D. Delay instilling the ophthalmic antibiotic for an hour.
- E. Play loud music to keep the infant stimulated.
- F. Ask the parents to delay phone calls for an hour after birth.
Correct Answer: B,C,D,F
Rationale: Dimming lights encourages eye contact skin-to-skin contact improves interaction delaying antibiotic ointment prevents blurred vision and delaying phone calls maximizes bonding time. Napping misses the alert period and loud music is overstimulating.
Which response by the nurse best explains why aspirin is preferred to acetaminophen (Tylenol) in the treatment of rheumatic fever?
- A. Aspirin controls fever better.
- B. Aspirin prevents infections.
- C. Aspirin relieves joint inflammation.
- D. Aspirin prevents cardiac enlargement.
Correct Answer: C
Rationale: Aspirin is preferred in rheumatic fever due to its anti-inflammatory properties, which relieve joint inflammation and pain associated with polyarthritis. Acetaminophen lacks significant anti-inflammatory effects, making aspirin more effective.
Because the burned child is confined to bed, the nurse assesses for footdrop. Which nursing action best prevents the development of footdrop?
- A. Apply braces to the feet and ankles.
- B. Keep the child in the side-lying position.
- C. Keep sheets tucked in at the foot of the bed.
- D. Rest the child's feet against a footboard.
Correct Answer: D
Rationale: Resting the child's feet against a footboard maintains the feet in a neutral position, preventing plantar flexion and footdrop during prolonged bed rest.
The nurse is caring for the client who has just given birth to a baby boy. The mother is O negative. The nurse should assess for ABO incompatibility and hyperbilirubinemia if the infant’s blood type is which type?
- A. O positive
- B. O negative
- C. A negative
- D. Any type
Correct Answer: C
Rationale: ABO incompatibility occurs when a mother with type O blood (no antigens A/B antibodies) has an infant with A or B blood (e.g. A negative) leading to hemolysis and hyperbilirubinemia. O blood types are compatible.