Q- In a case of methemoglobinemia, which one of the following is the most likely cause of the brown color of the patient’s blood?
A- Carbon monoxide
B- Decreased oxygen affinity
C- Oxidized hemoglobin
D- Reduced hemoglobin
Q- Which of the following agents most likely causes vasoconstriction?
C- Nitric oxide
Q- Paraneoplastic hypercalcemia is most likely caused by tumor cells secreting which one of the following substances?
B- Calcitonin-related peptide
C- Parathyroid hormone
D- Parathyroid hormone-related peptide