Which fetal structure is responsible for carrying oxygenated blood from the placenta to the fetus?
- A. Ductus arteriosus
- B. Umbilical artery
- C. Portal vein
- D. Umbilical vein
Correct Answer: D
Rationale: The correct answer is D: Umbilical vein. The umbilical vein carries oxygenated blood from the placenta to the fetus. This is because the placenta acts as the organ of gas exchange during fetal development. Oxygenated blood from the mother is transferred to the fetus through the umbilical vein. The other choices are incorrect because: A) Ductus arteriosus is a fetal blood vessel that connects the pulmonary artery to the aorta, bypassing the lungs. B) Umbilical artery carries deoxygenated blood from the fetus to the placenta. C) Portal vein carries nutrient-rich blood from the intestines to the liver, not from the placenta to the fetus.
You may also like to solve these questions
A nurse is caring for a child with Wilms' tumor. The parents ask why the sign 'Do not palpate the abdomen' has to be placed on their child's bed. Which of the following is the correct response by the nurse?
- A. Any manipulation of the abdomen can result in pain for your child.
- B. Palpation of the abdomen could cause the tumor to grow.
- C. Palpation of the abdomen could result in some of the tumor cells breaking loose, causing it to spread.
- D. Any manipulation of the abdomen will put pressure on the bladder and cause urine to leak.
Correct Answer: C
Rationale: The correct response is C: Palpation of the abdomen could result in some of the tumor cells breaking loose, causing it to spread. Palpating the abdomen in a child with Wilms' tumor can potentially lead to the dissemination of tumor cells into surrounding tissues and blood vessels, increasing the risk of metastasis. This precaution is crucial to prevent the spread of cancer cells and to contain the tumor within the kidney. Choices A, B, and D are incorrect as they do not address the specific risk associated with manipulating the abdomen in a child with Wilms' tumor. Option A focuses solely on pain, which is not the primary concern in this case. Option B is inaccurate as palpation does not cause tumor growth. Option D is irrelevant to the potential consequences of abdominal manipulation in this context.
Which treatment is a nursing priority when providing care for an infant diagnosed with bacterial meningitis?
- A. Initiate cardiorespiratory monitoring.
- B. Initiate intravenous fluids.
- C. Observe respiratory isolation.
- D. Administer antibiotic therapy.
Correct Answer: D
Rationale: The first nursing priority is the implementation of antibiotic therapy, which prohibits the microbial damage to the neurologic system through the cerebral spinal fluid. Immediate treatment with antibiotics can prevent serious complications such as death, deafness, reduced cognitive ability, and seizures.
For a client in the second trimester of pregnancy, which assessment data support a diagnosis of pregnancy-induced hypertension (PIH)?
- A. Hemoglobin 10.2 mg/dL and uterine tenderness
- B. Polyuria and weight loss of 3 pounds in the last month
- C. Blood pressure 168/110 and 3+ proteinuria
- D. Hematuria and blood glucose of 160 mg/dL
Correct Answer: C
Rationale: The correct answer is C: Blood pressure 168/110 and 3+ proteinuria. Pregnancy-induced hypertension (PIH) is characterized by high blood pressure (systolic ≥140 mmHg and/or diastolic ≥90 mmHg) and proteinuria. In this case, the blood pressure reading of 168/110 indicates hypertension, and 3+ proteinuria indicates significant protein in the urine, both of which are key diagnostic criteria for PIH.
A: Hemoglobin 10.2 mg/dL and uterine tenderness - These are not specific indicators of PIH.
B: Polyuria and weight loss of 3 pounds in the last month - These symptoms are not typically associated with PIH.
D: Hematuria and blood glucose of 160 mg/dL - Hematuria suggests blood in the urine, which is not a typical finding in PIH, and elevated blood glucose is more indicative of diabetes rather than PIH.
Therefore,
A nurse is caring for a child with muscular dystrophy. Which of the following priority actions should the nurse include in the care of this child?
- A. Limit physical activity and plan frequent rest periods to avoid overexertion and exhaustion of muscle groups.
- B. Recommend genetic counseling for parents,male siblings and paternal uncles and their male offspring.
- C. Advise against flu and pneumococcal vaccines due to a compromised respiratory system.
- D. Have the child use an incentive spirometer and perform breathing exercises routinely.
Correct Answer: D
Rationale: The correct answer is D: Have the child use an incentive spirometer and perform breathing exercises routinely. This is the priority action because children with muscular dystrophy are at risk for respiratory complications due to weakened respiratory muscles. Using an incentive spirometer and performing breathing exercises help maintain lung function and prevent respiratory infections.
A: Limiting physical activity and planning rest periods is important, but respiratory care takes precedence in muscular dystrophy.
B: Genetic counseling is important for family planning but does not directly impact the child's care.
C: Advising against vaccines can increase the risk of infections in a child with compromised respiratory function.
E, F, G: No information provided.
An assistive personnel (AP) is caring for a child diagnosed with leukemia and undergoing chemotherapy.
- A. "The AP offers a soft toothbrush for oral care."'
- B. "The AP applies a soft cotton cap to the child's head."'
- C. "The AP maintains a restriction of all visitors and health personnel with infections."'
- D. "The AP prepares to take a rectal temperature."'
Correct Answer: D
Rationale: Correct answer: D. "The AP prepares to take a rectal temperature."
Rationale: Taking a rectal temperature is crucial in monitoring the child's health during chemotherapy, as it provides a more accurate reading of the body's core temperature. Chemotherapy can suppress the immune system, increasing the risk of infections, so monitoring for fever is essential. Additionally, rectal temperature is the most accurate method for infants and young children.
Option A: Offering a soft toothbrush for oral care is important, but it is not the most critical action to take in this scenario.
Option B: Applying a soft cotton cap to the child's head may provide comfort but is not as essential as monitoring the child's temperature.
Option C: Maintaining a restriction of visitors and health personnel with infections is important for infection control, but this does not directly address the immediate need of monitoring the child's temperature.
In summary, taking a rectal temperature is the most critical action to ensure early detection of fever and prompt intervention