NURSING EXAM QUESTIONS
PHARMACOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
Methemoglobinemia
|
|
Carbo-xyhemoglobinemia
|
|
Hypothermia
|
|
Pregnancy
|
Detailed explanation-1: -The right shift in the oxygen dissociation curve is due to an increase in partial pressure of carbon dioxide or a decrease in the pH.
Detailed explanation-2: -The oxyhaemoglobin curve is shifted to the right when there is high PCO2, low PO2, high H+ concentration (low pH) and high temperature. Hence, Option D is correct.
Detailed explanation-3: -Fetal hemoglobin (HbF) is a principal oxygen carrier in the blood of preterm and term neonates. Compared to adult hemoglobin, it has a significantly higher affinity for oxygen and its oxyhemoglobin dissociation curve (ODC) is left-shifted accordingly.
Detailed explanation-4: -The O2-hemoglobin dissociation curve shifts to the right as a result of increased tissue PCO2, increased temperature, and decreased tissue pH.