Nokea
Peak expiratory flow rate:
- A. Is a sensitive parameter to assess improvement to therapy in acute bronchial asthma
- B. Measures small airway resistance
- C. Is more related to height rather than age
- D. Less than 50% of normal is an indication for aminophylline therapy in acute asthma
Correct Answer: A
Rationale: Peak expiratory flow rate is a useful tool to monitor response to asthma therapy, particularly in acute exacerbations.
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Patients at risk for bacterial endocarditis include those with all of the following EXCEPT
- A. repaired simple atrial septic defect
- B. aortic stenosis
- C. rheumatic fever heart disease
- D. palliative vascular shunts
Correct Answer: A
Rationale: Repaired simple atrial septal defects are not considered a risk for bacterial endocarditis unless there are residual defects.
Hypoglycemia in an infant is defined as whole blood glucose level less than
- A. 40 mg/dl
- B. 50 mg/dl
- C. 60 mg/dl
- D. 80 mg/dl
Correct Answer: A
Rationale: Hypoglycemia in infants is defined as a whole blood glucose level less than 40 mg/dl, as this threshold is critical for brain function.
The parent of a 1-year-old child with tetralogy of Fallot asks the nurse, “Why do my child’s fingertips look like that?†On what understanding does the nurse base a response?
- A. Clubbing occurs as a result of untreated congestive heart failure.
- B. Clubbing occurs as a result of a left-to-right shunting of blood.
- C. Clubbing occurs as a result of decreased cardiac output.
- D. Clubbing occurs as a result of chronic hypoxia.
Correct Answer: D
Rationale: Clubbing of the fingers develops in response to chronic hypoxia.
A 4-year-old child presents to the clinic with a history of persistent dry cough and wheezing. What is the nurse’s primary concern?
- A. Allergic reaction
- B. Asthma exacerbation
- C. Respiratory infection
- D. Acute bronchiolitis
Correct Answer: B
Rationale: Wheezing and persistent dry cough are hallmark symptoms of asthma exacerbation, which is the nurse's primary concern.
A client with cholelithiasis has a gallstone lodged in the common bile duct and is unable to eat or drink without becoming nauseated and vomiting. Which finding should the nurse report to the healthcare provider.
- A. Belching
- B. Amber urine
- C. Yellow sclera
- D. Flatulence
Correct Answer: C
Rationale: Yellow sclera indicates jaundice, which is a sign of bile duct obstruction and requires immediate medical attention.