Nokea
Decreased DLCO is seen with:
- A. Increased CO in circulation
- B. Anaemia
- C. Pulmonary fibrosis
- D. Exercise
Correct Answer: C
Rationale: Pulmonary fibrosis: Decreased diffusing capacity for carbon monoxide (DLCO) is a hallmark of pulmonary fibrosis, where lung tissue becomes scarred, reducing its ability to transfer gases.
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A 16-year-old being treated for hypertension has laboratory values of: Hemoglobin: 16 g/dL Hematocrit: 43% Sodium: 139 mEq/L Potassium: 4.4 mEq/L Total cholesterol: 220 mg/dL Which drug does the nurse suspect the patient takes based on the total cholesterol?
- A. Beta blockers
- B. Calcium channel blockers
- C. ACE inhibitors
- D. Diuretics
Correct Answer: A
Rationale: Beta blockers are used with caution in patients with hyperlipidemia, hyperglycemia, and impotence.
The nurse is closely monitoring the intake and output of an infant with heart failure who is receiving diuretic therapy. The nurse should use which most appropriate method to assess urine output?
- A. Inserting a foley catheter.
- B. Weighing the diapers.
- C. Comparing intake with output.
- D. Measuring the amount of water added to the formula.
Correct Answer: B
Rationale: Weighing diapers is a non-invasive and accurate method to assess urine output in infants, which is crucial for monitoring the effectiveness of diuretic therapy.
A nurse auscultated heart tones on an older adult client. Which action should the nurse take based on the heart tones heard?
- A. Administer a diuretic.
- B. Document the finding.
- C. Decrease the IV flow rate.
- D. Evaluate the client’s medications.
Correct Answer: B
Rationale: Documenting the findings is the appropriate action unless the heart tones indicate an abnormality requiring intervention.
The school nurse has been following a child who frequently complains of dizziness and headache. Today, she is brought in after fainting in the cafeteria following a nosebleed. Her BP is 122/85, and her radial pulses are bounding. The nurse suspects she has:
- A. Transposition of the great vessels
- B. Coarctation of the aorta (COA)
- C. Aortic stenosis (AS)
- D. Pulmonic stenosis (PS)
Correct Answer: B
Rationale: In older children, COA can cause elevated blood pressure, headache, fainting, and bounding radial pulses.
Whirlpool' sign in abdominal ultrasonogram is seen in
- A. Duodenal atresia
- B. Midgut volvulus
- C. Intussusception
- D. Anorectal malformation
Correct Answer: B
Rationale: The 'whirlpool' sign on abdominal ultrasound is characteristic of midgut volvulus, indicating twisting of the intestines around the mesenteric vessels.