Nokea
Which of the following solutions is routinely used to flush an IV device before and after the administration of blood to a client?
- A. 0.9% sodium chloride
- B. 5% dextrose in water solution
- C. Sterile water
- D. Heparin sodium
Correct Answer: A
Rationale: The correct answer is 0.9% sodium chloride. Normal saline is 0.9% sodium chloride, which has the same osmolarity as blood and does not cause cell lysis. Choices 2 and 3, 5% dextrose in water solution and sterile water, are hypotonic solutions that can lead to cell lysis. Choice 4, heparin sodium, is an anticoagulant and is not used for flushing IV devices before and after blood administration.
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During a well-baby examination, the nurse measures the head circumference, and it is the same as the chest circumference. On the basis of this measurement, what action should the nurse take?
- A. Document these measurements in the infant's health care record.
- B. Tell the mother that the infant is growing faster than expected.
- C. Suggest to the health care provider that a skull x-ray be performed.
- D. Report the presence of hydrocephalus to the health care provider.
Correct Answer: A
Rationale: The head circumference growth rate during the first year is approximately 0.4 inches (1 cm) per month. By 10 to 12 months of age, the infant's head and chest circumferences are equal. In this case, where the head circumference matches the chest circumference, it is a normal finding in infants around 10-12 months. Therefore, the most appropriate action is to document these measurements in the infant's health care record. Suspecting hydrocephalus or suggesting a skull x-ray would be premature and not indicated based on this measurement. Similarly, telling the mother that the infant is growing faster than expected is not accurate and could cause unnecessary concern.
A nurse is preparing to auscultate a fetal heart rate (FHR). The nurse performs the Leopold maneuvers to determine the position of the fetus and then places the fetoscope over which part of the fetus?
- A. Back of the fetus
- B. Carotid artery in the neck of the fetus
- C. Brachial area of one extremity of the fetus
- D. Chest of the fetus
Correct Answer: A
Rationale: The nurse would use the Leopold maneuvers to identify the position of the fetus and determine the location of the fetal back. The fetal heart rate (FHR) is most easily heard through the fetal back because it usually lies closest to the surface of the maternal abdomen. Auscultation of the FHR over the chest, carotid artery, or brachial area is not possible due to the fetal position within the maternal abdomen. Placing the fetoscope over the carotid artery or brachial area would not yield the fetal heart rate, and the chest area is not typically used for auscultating the FHR.
Distribution of a drug to various tissues depends on the amount of cardiac output to each type of tissue. Which tissue would receive the highest amount of cardiac output and thus the highest amount of a drug?
- A. skin
- B. adipose tissue
- C. skeletal muscle
- D. myocardium
Correct Answer: D
Rationale: The tissue that would receive the highest amount of cardiac output and thus the highest amount of a drug is the myocardium. Highly perfused tissues include vital organs like the brain, heart, kidneys, adrenal glands, and liver. The myocardium, being part of the heart, receives a significant amount of cardiac output. Choices A (skin) and B (adipose tissue) are poorly perfused tissues and would not receive high amounts of cardiac output. Choice C (skeletal muscle) is also less perfused compared to the myocardium.
All of the following are common reasons that nurses are reluctant to delegate except:
- A. lack of self-confidence.
- B. desire to maintain authority.
- C. confidence in subordinates.
- D. getting trapped in the 'I can do it better myself' mindset.
Correct Answer: C
Rationale: The correct answer is 'confidence in subordinates.' If a delegator has confidence in their subordinates' abilities, they are more likely to delegate tasks. Reasons why nurses are reluctant to delegate include their own lack of self-confidence, the desire to maintain authority, and getting trapped in the 'I can do it better myself' mindset. Therefore, having confidence in subordinates is not a common reason for reluctance to delegate.
The mother of an adolescent calls the clinic nurse and reports that her daughter wants to have her navel pierced. The mother asks the nurse about the dangers associated with body piercing. The nurse provides which information to the mother?
- A. Infection always occurs when body piercing is done
- B. Hepatitis B is a concern with body piercing
- C. Body piercing is generally harmless as long as it is performed under sterile conditions
- D. It is important to discourage body piercing because of the risk of contracting human immunodeficiency virus (HIV)
Correct Answer: C
Rationale: Generally, body piercing is harmless if the procedure is performed under sterile conditions by a qualified person. Some complications that may occur include bleeding, infection, keloid formation, and the development of allergies to metal. It is essential to clean the area at least twice a day (more often for a tongue piercing) to prevent infection. HIV and hepatitis B infections are not typically associated with body piercing; however, they are a possibility with tattooing. Choice A is incorrect because infection does not always occur when body piercing is done. Choice B is not the best answer as hepatitis B is not commonly associated with body piercing. Choice D is incorrect because the risk of contracting HIV is not a significant concern with body piercing if performed under sterile conditions.