Nokea
Which is the incorrect statement regarding effect of dobutamine infusion in patients with heart failure
- A. Left ventricular end diastolic pressure decreases
- B. Mean arterial pressure decreases slightly due to interplay of actions on alpha 1 and alpha 2 receptors
- C. Left ventricular end systolic volume decreases
- D. There is increased myocardial oxygen demand
Correct Answer: B
Rationale: Mean arterial pressure typically increases, not decreases, with dobutamine infusion due to its inotropic effects.
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All of the following are part of acute aortic syndrome, except
- A. Aortic dissection
- B. Acute aortic regurgitation
- C. Intramural hematoma
- D. Penetrating atherosclerotic ulcer
Correct Answer: B
Rationale: Acute aortic regurgitation is not typically considered part of acute aortic syndrome.
While looking through the chart of an infant with a congenital heart defect (CHD) of decreased pulmonary blood flow, the nurse would expect which laboratory finding?
- A. Decreased platelet count
- B. Polycythemia
- C. Decreased ferritin level
- D. Shift to the left
Correct Answer: B
Rationale: Chronic hypoxemia in CHD leads to polycythemia as a compensatory mechanism.
How much bilirubin can be bound to 1 gm of albumin?
- A. 8.5 mg
- B. 9.8 mg
- C. 10.5 mg
- D. 13.6 mg
Correct Answer: A
Rationale: 1 gram of albumin can bind approximately 8.5 mg of bilirubin, which is important in managing neonatal jaundice.
The ECG in left ventricular hypertrophy and shows a superior QRS axis (between -90' and 0')
- A. tricuspid atresia
- B. Ebstein anomaly
- C. pulmonary atresia
- D. tetralogy of Fallot
Correct Answer: D
Rationale: Left ventricular hypertrophy with a superior QRS axis is characteristic of tetralogy of Fallot.
A client with ulcerative colitis is admitted to the medical unit during an acute exacerbation. The nurse should instruct the unlicensed assistive personnel (UAP) to report which finding related to the client's bowel movements?
- A. Hard pellets of stool
- B. Clay-colored stool
- C. Stool with fatty streaks
- D. Blood in the stool
Correct Answer: D
Rationale: Blood in the stool is a common finding during an acute exacerbation of ulcerative colitis, which is an inflammatory condition of the colon.