Nokea
A 4 year-old child is admitted with burns on his legs and lower abdomen. When assessing the child's hydration status, which of the following indicates a less than adequate fluid replacement?
- A. Decreasing hematocrit and increasing urine volume
- B. Rising hematocrit and decreasing urine volume
- C. Falling hematocrit and decreasing urine volume
- D. Stable hematocrit and increasing urine volume
Correct Answer: B
Rationale: Rising hematocrit and decreasing urine volume. A rising hematocrit indicates a decreased total blood volume, a finding consistent with dehydration.
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The client asks the clinic nurse if he should take 2,000 mg of vitamin C a day to prevent getting a cold. On which scientific rationale should the nurse base the response?
- A. Vitamin C in this dosage will help cure the common cold.
- B. This vitamin must be taken with echinacea to be effective.
- C. This dose of vitamin C is not high enough to help prevent colds.
- D. Megadoses of vitamin C may cause crystals to form in the urine.
Correct Answer: D
Rationale: Megadoses of vitamin C (>2,000 mg/day) can lead to oxalate crystal formation in urine, increasing kidney stone risk. Evidence for cold prevention is weak, and echinacea or higher doses are not supported.
An elderly client is on an anticholinergic metered dose inhaler (MDI) for chronic obstructive pulmonary disease. The nurse would suggest a spacer to
- A. enhance the administration of the medication
- B. increase client compliance
- C. improve aerosol delivery in clients who are not able to coordinate the MDI
- D. prevent exacerbation of COPD
Correct Answer: C
Rationale: Spacers improve the medication delivery in clients who are unable to coordinate the movements of administering a dose with an MDI.
The nurse is caring for a child immediately after surgical correction of a ventricular septal defect. Which of the following nursing assessments should be a priority?
- A. Blanch nail beds for color and refill
- B. Assess for post-operative arrhythmias
- C. Auscultate for pulmonary congestion
- D. Monitor equality of peripheral pulses
Correct Answer: B
Rationale: Assess for post-operative arrhythmias. The atrioventricular bundle (bundle of His), a part of the electrical conduction system of the heart, extends from the atrioventricular node along each side of the interventricular septum and then divides into right and left bundle branches. Surgical repair of a ventricular septal defect consists of a purse-string approach or a patch sewn over the opening.
The client in the emergency department requires sutures for a laceration on the left leg. Which information is most pertinent prior to suturing the wound?
- A. The client tells the nurse she has never had sutures.
- B. The spouse refuses to leave the room during suturing.
- C. The client shares she is scared of needles.
- D. The client reports hives after having dental surgery.
Correct Answer: D
Rationale: Hives post-dental surgery suggest a possible local anesthetic allergy, critical to know before suturing to avoid anaphylaxis.
An adult client is on call for the operating room. The preoperative medication order is for meperidine HCl (Demerol) 100 mg IM and atropine 0.4 mg IM. The operating room calls at 11:00 A.M. and requests that the client be medicated. The nurse notes that the client last received meperidine for pain at 10:00 A.M. What is the most appropriate action for the nurse to take?
- A. Give the preoperative medication as ordered
- B. Give half the dose of meperidine and all of the atropine
- C. Check with the anesthesiologist before administering the medication
- D. Withhold both the meperidine and the atropine
Correct Answer: C
Rationale: Recent meperidine administration increases the risk of respiratory depression. Consulting the anesthesiologist ensures safe dosing.