Nokea
Which statement by the mother of a child with rheumatic fever (RF) shows she has an understanding of prevention for her other children?
- A. Whenever one of them gets a sore throat, I will give that child an antibiotic.
- B. There is no treatment. It must run its course.
- C. If their culture is positive for group A streptococcus, I will give them their antibiotic.
- D. If their culture is positive for staphylococcus A, I will give them their antibiotic.
Correct Answer: A
Rationale: Preventive antibiotic therapy is indicated when a culture is positive for group A streptococcus, but unnecessary antibiotic use (if the infection is viral) should be avoided.
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Which of the following drugs have no mortality benefit?
- A. Nitrates
- B. Beta-blockers
- C. Trimetazidine
- D. RAAS blockers
Correct Answer: C
Rationale: Trimetazidine is used as an adjunct therapy in ischemic heart disease but does not have a proven mortality benefit, unlike RAAS blockers, beta-blockers, and nitrates.
Methaemoglobinaemia may occur as a result of ingestion or exposure to:
- A. Paraquat
- B. Methylene blue
- C. Potassium permanganate
- D. Nitrates
Correct Answer: D
Rationale: Nitrates, when ingested, can lead to methaemoglobinaemia by converting hemoglobin to methemoglobin, impairing oxygen delivery.
Hemolytic anaemia is characterised by:
- A. Increased haptoglobin
- B. Haemosiderinuria
- C. Polychromasia
- D. Megaloblastic bone marrow
Correct Answer: B
Rationale: Haemosiderinuria: Hemolytic anaemia often leads to the release of heme, which is broken down into hemosiderin, leading to haemosiderinuria (presence of hemosiderin in urine).
The family suspects that AIDS dementia is occurring in their son who is HIV positive. Which symptom confirms their suspicions?
- A. A change has recently occurred in his handwriting.
- B. The client has a persistent cough and fever.
- C. The client experiences shortness of breath.
- D. The client exhibits a loss of appetite.
Correct Answer: A
Rationale: Changes in handwriting may indicate cognitive decline, a hallmark of AIDS dementia.
Changes that occur in CVS and Respiratory system at birth
- A. Increase in pulmonary Vascular resistance
- B. Increase in Oxygen concentration in Aorta
- C. Increase in the right Ventricular Pressure
- D. Reversal of flow through the ductus arteriosus
Correct Answer: B
Rationale: At birth, oxygen concentration increases in the aorta as lungs begin functioning.