Nokea
For which client should the nurse question administering the muscarinic cholinergic agonist oxybutynin (Ditropan)?
- A. The client diagnosed with overactive bladder.
- B. The client diagnosed with type 2 diabetes.
- C. The client diagnosed with glaucoma.
- D. The client diagnosed with peripheral vascular disease.
Correct Answer: C
Rationale: Oxybutynin’s anticholinergic effects can increase intraocular pressure, contraindicating it in glaucoma. It’s appropriate for overactive bladder; diabetes or PVD are not contraindications.
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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 diagnosed with status asthmaticus is prescribed intravenous aminophylline, a bronchodilator. Which assessment data would warrant immediate intervention?
- A. The theophylline level is 12 mcg/mL.
- B. The client has expiratory wheezing.
- C. The client complains of muscle twitching.
- D. The client is refusing to eat the meal.
Correct Answer: C
Rationale: Muscle twitching indicates theophylline toxicity, requiring immediate intervention. Normal levels (10–20 mcg/mL), wheezing, or meal refusal are expected or less urgent.
The client is receiving a loop diuretic for congestive heart failure. Which medication would the nurse expect the client to be receiving while taking this medication?
- A. A potassium supplement.
- B. A cardiac glycoside.
- C. An ACE inhibitor.
- D. A potassium cation.
Correct Answer: A
Rationale: Loop diuretics like furosemide cause potassium loss; supplements prevent hypokalemia, a common need in CHF.
The nurse is administering the loop diuretic furosemide (Lasix) to the client diagnosed with essential hypertension. Which assessment data would warrant the nurse to question administering the medication?
- A. The client's potassium level is 4.2 mEq/L.
- B. The client's urinary output is greater than the intake.
- C. The client has tented skin turgor and dry mucous membranes.
- D. The client has lost two (2) pounds in the last 24 hours.
Correct Answer: C
Rationale: Tented skin turgor and dry membranes indicate dehydration, a contraindication for Lasix, which could worsen fluid loss. Normal potassium, output, or weight loss are expected.
The health care provider orders an IV aminophylline infusion at 30 mg/hr. The pharmacy sends a 1,000 ml bag of D5W containing 500 mg of aminophylline. In order to administer 30 mg per hour, the RN will set the infusion rate at:
- A. 20 ml per hour
- B. 30 ml per hour
- C. 50 ml per hour
- D. 60 ml per hour
Correct Answer: D
Rationale: 60 ml per hour. Using the ratio method to calculate infusion rate: mg to be given (30) : ml to be infused (X) :: mg available (500) : ml of solution (1,000). Solve for X by cross-multiplying: 30 × 1,000 = 500 × X, 30,000 = 500X, X = 30,000 / 500, X = 60 ml per hour.