Nokea
Which finding by the nurse strongly indicates that a child is experiencing hypokalemia?
- A. Full, bounding pulses
- B. Muscle weakness
- C. Elevated blood pressure
- D. Hyperactive bowel sounds
Correct Answer: B
Rationale: Hypokalemia causes muscle weakness due to impaired muscle contraction, a key manifestation resulting from low potassium levels affecting neuromuscular function.
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The physician orders 500 mg of a medication to be given I.V. over 4 hours. The medication is diluted in 100 mL of fluid. What is the hourly flow rate in milliliters?
Correct Answer: 25 mL/hour
Rationale: Calculation: 100 mL over 4 hours = 100 ÷ 4 = 25 mL/hour. Since no options are provided, the calculated rate is noted for accuracy.
Which nursing action is most appropriate when caring for a school-age child who is experiencing a nosebleed?
- A. Tilt the child's head backward, and apply an ice pack to the nose.
- B. Position the child's head forward while gently pinching the nostrils.
- C. Pack the affected nostril with a small amount of clean cotton.
- D. Clean the affected nostril, and instill saline nose drops.
Correct Answer: B
Rationale: Positioning the head forward and pinching the nostrils applies pressure to stop bleeding while preventing blood from flowing down the throat, which could cause choking or nausea.
Maximum normal time for second stage of labour in primigravida without anaesthesia is about:
- A. 20 minutes.
- B. 60 minutes.
- C. 120 minutes.
- D. 240 minutes.
- E. There is no normal maximum.
Correct Answer: C
Rationale: The second stage in primigravida without anesthesia is typically up to 2 hours (120 minutes). Beyond this intervention is considered due to risks of maternal or fetal distress.
What is the diameter of fetal skull that presents at vulva during normal labour:
- A. Suboccipitofrontal.
- B. Mentovertical.
- C. Suboccipitobregmatic.
- D. Occipitofrontal.
- E. Metoposterior.
Correct Answer: C
Rationale: In normal vertex presentation the suboccipitobregmatic diameter (9.5 cm) is the smallest and presents at the vulva during delivery. Other diameters are larger or associated with abnormal presentations.
Thyrotoxicosis is pregnancy is treated with:
- A. Partial thyroidectomy in first trimester.
- B. Radioiodine ablation of thyroid gland.
- C. With neomercazole.
- D. Surgery on thyroid gland in 3rd trimester.
- E. With iodine drops and β-blockers.
Correct Answer: C
Rationale: Neomercazole (carbimazole) is used to treat thyrotoxicosis in pregnancy as it controls thyroid hormone production safely. Radioiodine is contraindicated and surgery is avoided unless absolutely necessary.