Nokea
A client is receiving scheduled doses of carbidopa-levodopa. The nurse evaluates the medication as having the intended effect if which finding is noted?
- A. Improvement in short-term memory
- B. Improvement in spontaneous activity
- C. Reduction in number of visual hallucinations
- D. Reduction of dizziness with standing
Correct Answer: B
Rationale: Carbidopa-levodopa treats Parkinson's symptoms like bradykinesia, improving spontaneous activity, which is the primary therapeutic goal.
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The nurse assesses a child with intussusception. Which assessment findings require priority intervention?
- A. Abdominal rigidity with guarding
- B. Absence of tears in crying child with IV start
- C. Blood-streaked mucous stool in diaper
- D. Sausage-shaped right-sided mass on palpation
Correct Answer: A
Rationale: Abdominal rigidity with guarding suggests peritonitis or perforation, critical complications of intussusception requiring immediate surgical intervention.
The client has been vomiting for several days. Which blood gas values is he likely to have?
- A. pH=7.32; CO2=60; HCO3=30
- B. pH=7.32; CO2=33; HCO3=18
- C. pH=7.54; CO2=28; HCO3=22
- D. pH=7.54; CO2=32; HCO3=34
Correct Answer: C
Rationale: Prolonged vomiting causes metabolic alkalosis (high pH, low CO2) due to loss of stomach acid, matching pH=7.54, CO2=28, HCO3=22.
A 35 year-old client with sickle cell crisis is talking on the telephone but stops as the nurse enters the room to request something for pain. The nurse should
- A. Administer a placebo
- B. Encourage increased fluid intake
- C. Administer the prescribed analgesia
- D. Recommend relaxation exercises for pain control
Correct Answer: C
Rationale: Administer the prescribed analgesia. Pain relief is a priority in sickle cell crisis, and prescribed analgesics are appropriate.
An adult client is receiving oxygen at 6 L/min. The client asks the nurse why the oxygen is running through bubbling water. What should be included in the nurse's reply?
- A. The water cools the oxygen and makes it more comfortable.
- B. Oxygen is very drying to tissues; the water humidifies it.
- C. The water prevents fires when oxygen is in use.
- D. The water helps to prevent infections from developing in the tubing.
Correct Answer: B
Rationale: Bubbling water in oxygen delivery systems humidifies the oxygen, preventing mucosal drying. It doesn't cool oxygen, prevent fires, or reduce infections.
The physician has ordered O2 at 3 liters/minute for a client with emphysema. Which device will deliver the most precise level of oxygen prescribed for the client?
- A. Nasal cannula
- B. Partial rebreather mask
- C. Simple face mask
- D. Venturi mask
Correct Answer: D
Rationale: The Venturi mask will deliver the most precise level of oxygen for the client with COPD. Answer A is incorrect, because the client may lose oxygen through an open mouth. Answers B and C are incorrect, because they are not used to deliver oxygen to the client with COPD.