Nokea
The enzyme producing carbon monoxide within the human body is
- A. Aminolevulinic acid synthase
- B. Heme oxygenase
- C. Cyclo-oxygense
- D. Nitric oxide synthase
Correct Answer: B
Rationale: Heme oxygenase is responsible for the production of carbon monoxide during the breakdown of heme.
You may also like to solve these questions
A psychiatric referral is warranted in a preschool child with the following:
- A. Night terrors
- B. Separation anxiety
- C. Scared of ghosts
- D. Masturbation
Correct Answer: B
Rationale: Separation anxiety in a preschool child, especially if it is severe and persistent, may warrant a psychiatric referral to assess for anxiety disorders.
Drug combinations recommended to be avoided include all, except
- A. Metronidazole and Warfarin
- B. Furosemide and Gentamicin
- C. Dihydropyridine calcium channel blockers and beta blockers
- D. Omega-3 and Antiplatelets
Correct Answer: D
Rationale: Omega-3 and antiplatelets are not typically a contraindicated combination.
Progressive spinal muscular atrophy of infancy presents with:
- A. Severe generalised weakness
- B. Fasciculations in the tongue
- C. Loss of spinothalamic tract function
- D. Spontaneous fibrillation on electromyography
Correct Answer: A
Rationale: Progressive spinal muscular atrophy presents with severe weakness and tongue fasciculations. Spinothalamic tract function is preserved, and electromyography shows fibrillation.
The most common cause for testicular pain in boys in 2-10 years of age is
- A. Testicular torsion
- B. Torsion of appendix testis
- C. Epididymitis
- D. Congenital varicocele
Correct Answer: B
Rationale: Torsion of the appendix testis is the most common cause of testicular pain in boys aged 2-10 years, as it involves the twisting of a small vestigial remnant.
Exposure to which illness should be a cause to discontinue therapy and substitute dipyridamole (Persantine) in a child receiving aspirin therapy for Kawasaki disease (KD)?
- A. Chickenpox or influenza
- B. E. coli or staphylococcus
- C. Mumps or streptococcus A
- D. Streptococcus A or staphylococcus
Correct Answer: A
Rationale: Both chickenpox and influenza are viral; during these illnesses, aspirin (a salicylate) is typically discontinued due to the risk of Reye syndrome.