Nursing Elites

1. Which of the following parameters is the LEAST reliable when assessing the perfusion status of a 2-year-old child?

• A. Capillary refill time
• B. Presence of peripheral pulses
• C. Skin color and temperature
• D. Systolic blood pressure

Correct answer: D

Rationale: Systolic blood pressure is the least reliable parameter when assessing perfusion status in a 2-year-old child. In young children, blood pressure measurements can be variable, affected by factors like anxiety or crying. Capillary refill time, presence of peripheral pulses, and skin color and temperature are more reliable indicators of perfusion status in this age group.

2. During the initial assessment of the newborn, which of the following data would be considered normal?

• A. Chest circumference 31.5 cm, head circumference 33.5 cm
• B. Chest circumference 30 cm, head circumference 29 cm
• C. Chest circumference 38 cm, head circumference 31.5 cm
• D. Chest circumference 32.5 cm, head circumference 36 cm

Correct answer: A

Rationale: The correct answer is A. During the initial assessment of a newborn, the average head circumference at birth is 32 to 37 cm, while the average chest circumference ranges from 30 to 35 cm. Normally, the head's circumference is about 2 cm greater than the chest circumference at birth. Choice A provides measurements of chest circumference 31.5 cm and head circumference 33.5 cm, both falling within the normal range in terms of actual size and relative size. Choices B, C, and D do not align with the typical measurements seen in a healthy newborn. Choice B has both circumferences below the average range, choice C has the chest circumference above the average, and choice D has the head circumference notably higher than the chest circumference, which is not typical for a newborn.

3. What is the main function of the uterus?

• A. Dilate and expel the baby from the cervix.
• B. House the fetus as it grows for 40 weeks.
• C. Provide a cushion and protect the fetus from infection.
• D. Provide oxygen and other nutrients to the fetus.

Correct answer: B

Rationale: The main function of the uterus is to house and nurture the growing fetus for approximately 40 weeks during pregnancy. It provides the necessary environment for the fetus to develop and grow until it is ready for birth. Choice A is incorrect as the cervix, not the uterus, dilates during labor to allow the baby to pass through. Choice C is incorrect as while the uterus does provide a protective environment, its primary function is not to act as a cushion. Choice D is incorrect as the placenta, not the uterus, is responsible for providing oxygen and nutrients to the fetus.

4. Sometimes, people with congestive heart failure develop arrhythmias of the heart. These irregular rhythms can be conducive to developing a blood clot. Physicians frequently treat people with 'blood thinning' medicines that require regulation of the density of the blood. Which of these is the name for a blood-thinner?

• A. Erythromycin
• B. Tetracycline
• C. Warfarin
• D. Amoxicillin

Correct answer: C

Rationale: Warfarin is a medication commonly used as a blood thinner to prevent blood clot formation. It works by inhibiting the clotting factors in the blood, thereby reducing the risk of clot formation and helping in the management of conditions like congestive heart failure and arrhythmias. Choices A, B, and D are antibiotics and do not have blood-thinning properties like Warfarin.

5. Which of the following techniques represents the MOST appropriate method of opening the airway of an infant with no suspected neck injury?

• A. Perform the technique as you would for an older child or adult.
• B. Lift up the chin and hyperextend the neck.
• C. Gently lift the chin while maintaining slight flexion of the neck.
• D. Tilt the head back without hyperextending the neck.

Correct answer: D

Rationale: Tilting the head back without hyperextending the neck is the safest way to open an infant's airway. Hyperextending the neck can potentially cause harm to the infant, making option D the most appropriate method for opening an infant's airway without suspected neck injury.

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