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Where is the Loop of Henle located in the body?
- A. Liver
- B. Kidney
- C. Heart
- D. Ear
Correct Answer: B
Rationale: The Loop of Henle is a crucial structure found in the kidneys. It plays a vital role in the concentration of urine by creating a concentration gradient in the renal medulla. Choices A, C, and D are incorrect because the Loop of Henle is not located in the liver, heart, or ear. Understanding the anatomical location of the Loop of Henle is essential in comprehending renal physiology and the mechanism of action of diuretic medications.
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When a sequence of repeated weights is necessary, the healthcare provider should aim to weigh the patient at the same time of day and with consistent clothing. Using a standardized balance or electronic standing scale is recommended for accurate measurements. The patient should remove shoes and heavy outer clothing. It is not required for the patient to always be weighed in undergarments. What is the most appropriate indicator of the patient's overall well-being?
- A. General health
- B. Genetic makeup
- C. Nutritional status
- D. Activity and exercise patterns
Correct Answer: A
Rationale: Weight measurements are essential to assess general health, particularly in monitoring growth patterns. Height and weight recordings are crucial indicators of overall well-being, reflecting the individual's health status. Genetic makeup does not change with weight fluctuations, making it an inappropriate indicator. Nutritional status and activity levels can influence weight but are not as comprehensive as general health in reflecting overall well-being.
A 4-month-old child is at the clinic for a well-baby checkup and immunizations. Which of these
actions is most appropriate when the nurse is assessing an infant's vital signs?
- A. The infant's radial pulse should be palpated, and the nurse should notice any
fluctuations resulting from activity or exercise. - B. The nurse should auscultate an apical rate for 1 minute and then assess for any
normal irregularities, such as sinus dysrhythmia.
- C. The infant's blood pressure should be assessed by using a stethoscope with a large
diaphragm piece to hear the soft muffled Korotkoff sounds. - D. The infant's chest should be observed and the respiratory rate counted for 1
minute; the respiratory pattern may vary significantly.
Correct Answer: B
Rationale: The nurse auscultates an apical rate, not a radial pulse, with infants and toddlers. The pulse should be
counted by listening to the heart for 1 full minute to account for normal irregularities, such as sinus
dysrhythmia. Children younger than 3 years of age have such small arm vessels; consequently,
hearing Korotkoff sounds with a stethoscope is difficult. The nurse should use either an electronic
blood pressure device that uses oscillometry or a Doppler ultrasound device to amplify the sounds.
An infant's respiratory rate should be assessed by observing the infant's abdomen, not chest, because
an infant's respirations are normally more diaphragmatic than thoracic. The nurse should auscultate
an apical heart rate, not palpate a radial pulse, with infants and toddlers.
The nurse is assessing an 8-year-old child whose growth rate measures below the third percentile for
a child his age. He appears significantly younger than his stated age and is chubby with infantile
facial features. Which condition does this child likely have?
- A. Acromegaly
- B. Marfan syndrome
- C. Hypopituitary dwarfism
- D. Achondroplastic dwarfism
Correct Answer: C
Rationale: Hypopituitary dwarfism is caused by a deficiency in growth hormone in childhood and results in a
retardation of growth below the third percentile, delayed puberty, and other problems. The child's
appearance fits this description. Achondroplastic dwarfism is a genetic disorder resulting in
characteristic deformities; Marfan syndrome is an inherited connective tissue disorder characterized
by a tall, thin stature and other features. Acromegaly is the result of excessive secretion of growth
hormone in adulthood which causes overgrowth of bone in the face, head, hands, and feet.
During the evaluation of the quality of home care for a client with Alzheimer's disease, the priority for the nurse is to reinforce which statement by a family member?
- A. "At least two (2) full meals a day are eaten."?
- B. "We go to a group discussion every week at our community center."?
- C. "We have safety bars installed in the bathroom and have 24-hour alarms on the doors."?
- D. "The medication is not a problem to have taken three (3) times a day."?
Correct Answer: C
Rationale: The correct answer is, '"We have safety bars installed in the bathroom and have 24-hour alarms on the doors."?' Ensuring the safety of a client with Alzheimer's disease is crucial in home care. Installing safety features like bars in the bathroom and alarms on doors help prevent accidents and injuries. This contributes to creating a safe environment that promotes independence and autonomy for the client. Choices A, B, and D are incorrect because while they are important aspects of care, ensuring safety in the home environment takes precedence in caring for a client with Alzheimer's disease.
The nurse is assessing children in a pediatric clinic. Which statement is true regarding the
measurement of blood pressure in children?
- A. Blood pressure guidelines for children are based on age.
- B. Phase II Korotkoff sounds are the best indicator of systolic blood pressure in
children. - C. Using a Doppler device is recommended for accurate blood pressure measurements
until adolescence.
- D. The disappearance of phase V Korotkoff sounds can be used for the diastolic
reading in children.
Correct Answer: D
Rationale: The disappearance of phase V Korotkoff sounds can be used for the diastolic reading in children, as
well as in adults. Blood pressure guidelines for children are based on more than just age, but also sex
and height. Phase I Korotkoff, not Phase II, is the best indicator of systolic blood pressure. The true
statement regarding the measurement of blood pressure in children is that the disappearance of phase
V Korotkoff sounds can be used for the diastolic reading in children, as well as in adults.