Nokea
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.
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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.
For the child with hypoplastic left heart syndrome, which medication may be given to keep the patent ductus arteriosus (PDA) open until surgery can be done?
- A. Prostaglandin E
- B. Indomethicin
- C. Ibuprofen
- D. Digoxin
Correct Answer: A
Rationale: Prostaglandin E is used to keep the PDA open in infants with hypoplastic left heart syndrome, allowing for adequate blood flow until surgical intervention can be performed.
A 3-month-old infant who was previously healthy now has a persistent cough, bilateral lung crackles, and poor appetite. A grade III/VI, low-pitched, holosystolic murmur over the left lower sternal border and palpates the liver at one centimeter below the ribs. What diagnosis is likely?
- A. Atrial septal defect (ASD)
- B. Coarctation of the aorta (COA)
- C. Patent ductus arteriosis (PDA)
- D. Ventricular septal defect (VSD)
Correct Answer: D
Rationale: The symptoms above are characteristic of a VSD and may not present at birth but appear later as CHF becomes more pronounced.
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.
Correct statement regarding congenital rubella syndrome (CRS) is
- A. CRS with vaccine-strain of virus has not been reported
- B. Re-infections during pregnancy do not result in CRS
- C. Administration of immune globulin immediately after exposure to a case during pregnancy is effective in preventing CRS
- D. Patent ductus arteriosus is the commonest manifestation of CRS
Correct Answer: A
Rationale: CRS with the vaccine-strain of the virus has not been reported, as the vaccine strain is attenuated and does not cause congenital infection.