Q- Which one of the following classes of drugs decreases preload by increasing venous capacitance?
A- ACE inhibitors
B- Beta blockers
C- Nitrates
D- Thiazide diuretics
Q- A patient with vitamin B12 deficiency develops neurological symptoms. Which metabolic change is responsible?
A- Increased homocysteine only
B- Increased methylmalonic acid only
C- Increased homocysteine and methylmalonic acid
D- Decreased folate levels
Q- A patient has a mutation in mitochondrial DNA. Which pattern of inheritance is expected?
A- Autosomal dominant
B- Autosomal recessive
C- Maternal inheritance
D- X-linked inheritance
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