Nokea
Which of the following problems associated with anemia best explains why Aisa becomes dizzy during periods of physical activity?
- A. A sudden drop in blood pressure
- B. Insufficient cerebral oxygenation
- C. Decreased level of serum glucose
Correct Answer: B
Rationale: Anemia is a condition characterized by a decreased number of red blood cells or hemoglobin, which can result in inadequate oxygen delivery to tissues and organs, including the brain. When Aisa engages in physical activity, her body's oxygen demand increases. However, due to her anemia, there is a reduced capacity to transport oxygen to meet the increased demand. This mismatch between oxygen supply and demand leads to insufficient oxygen reaching her brain, resulting in dizziness. This symptom is consistent with the explanation of insufficient cerebral oxygenation in the context of anemia.
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Which statement best describes the clinical manifestations of the preterm newborn?
- A. Head is proportionately small in relation to the body.
- B. Sucking reflex is absent, weak, or ineffectual.
- C. Thermostability is well established.
- D. Extremities remain in attitude of flexion.
Correct Answer: D
Rationale: The statement that best describes the clinical manifestations of the preterm newborn is that the extremities remain in an attitude of flexion. This characteristic is known as the "fetal position" and is commonly observed in preterm infants due to their premature musculoskeletal development. The flexed position of the extremities is a result of the baby's position in the uterus and is a normal finding for preterm newborns. Other clinical manifestations of preterm newborns may include a disproportionately large head in relation to the body, an immature or weak sucking reflex, and decreased thermostability due to their underdeveloped thermoregulatory systems.
An adult is being taught about a healthy diet. How can the food pyramid help guide the client on his diet?
- A. By indicating exactly how many servings of each group to eat
- B. By calculating how many calories the client should have
- C. By suggesting daily food choices
- D. By dividing the food into four basic groups
Correct Answer: C
Rationale: The food pyramid can help guide the client on his diet by suggesting daily food choices. The food pyramid categorizes different food groups based on their nutritional compositions and recommended daily servings. By following the food pyramid, the client can make informed choices about what types and amounts of food to consume each day to achieve a balanced and healthy diet. The visual representation of the food pyramid also helps in understanding the relative proportions of different food groups that are part of a nutritious diet.
Mrs. Santos, a 75-year old patient with type II diabetes is in emergency department with signs of hyperglycemic, hyperosmolar nonketotic (HHNK) coma. What assessment finding should the nurse expect?
- A. Fruity odor of the breath
- B. shallow, deep respirations
- C. severe dehydration
- D. profuse sweating
Correct Answer: C
Rationale: In a patient with hyperglycemic, hyperosmolar nonketotic coma (HHNK), the high blood glucose levels lead to osmotic diuresis, causing excessive urination and subsequent dehydration. Dehydration can manifest as symptoms such as dry mucous membranes, poor skin turgor, decreased urine output, increased heart rate, and low blood pressure. Therefore, the nurse should expect to find signs of severe dehydration in a patient with HHNK coma. The other options listed are not typical assessment findings associated with HHNK coma.
The age at which the infant achieves early head control with bobbing motion when pulled to sit is
- A. 2 mo
- B. 3 mo
- C. 4 mo
- D. 6 mo
Correct Answer: B
Rationale: Early head control with bobbing motion typically occurs around 3 months.
The ductus arteriosus is another fetal structure that is important in the intrauterine life. It functions to:
- A. Shunts the combined cardiac output from the pulmonary artery to the aorta going to the lungs
- B. Shunts the combined cardiac output from the pulmonary artery to the systemic circulation
- C. Shunts the combined cardiac output from the aorta to the pulmonary artery and later to the pulmonary veins
- D. Shunts the combined cardiac output from the aorta to the pulmonary artery to the right ventricle 48
Correct Answer: B
Rationale: The ductus arteriosus is a fetal blood vessel that connects the pulmonary artery to the aorta. Its main function is to bypass the non-functional fetal lungs by shunting blood from the pulmonary artery (which carries deoxygenated blood) directly to the systemic circulation, specifically the aorta. This allows oxygenated blood from the placenta to be distributed to the body's organs and tissues without having to first pass through the lungs for oxygen exchange. After birth, when the baby begins to breathe and oxygenate its blood through the lungs, the ductus arteriosus normally closes within the first few days to weeks of life.