Daily Nursing Exam Questions #0031-34

Rationale: Lithium is a drug whose effect changes even with a very small change in its dosage. If its level in the blood is slightly low, the drug will not work, and if it is high, the patient may experience vomiting, diarrhea, tremors, dizziness, even seizures or coma. This is why when a patient takes lithium for a long time, doctors check his serum lithium level frequently, so that the drug remains safe and effective.

Rationale: IgG is the only immunoglobulin that can cross the placenta. This is why it protects the newborn from many infections in the first months after birth by providing the newborn with antibodies produced by the mother. This process provides passive immunity to the newborn.

Rationale: The most common cause of miscarriage in the first trimester is chromosomal abnormalities in the fetus. These genetic defects in the fetus prevent normal development, leading to early pregnancy loss. Other causes such as trauma, maternal illness, or infection (RTI) are less common in this period.

Rationale: During a heart attack (Myocardial Infarction), the coronary artery is usually affected. This artery supplies blood to the heart muscle. If the blood flow in it is blocked, the heart muscle does not get enough oxygen, which leads to a heart attack. Other arteries such as renal, celiac, or hepatic artery are not usually affected during this.