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?

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.

Correct Answer: B

Rationale: Rectal temperature measurement is preferred in situations where other routes are impractical or when the most accurate measure is necessary, such as in critically ill patients. The rectal route may be chosen due to its reliability in such cases. For older adults, school-age children, and patients receiving oxygen via nasal cannula, rectal temperature measurement is not typically indicated. Other routes like oral, tympanic, or axillary measurements are more commonly used in these populations due to comfort, convenience, and non-invasive nature.

Correct Answer: B

Rationale: The correct answer is "The rapid measurement of the TMT is beneficial for uncooperative younger children." TMT is ideal for young children who may not cooperate for oral temperatures or fear rectal temperatures. However, using TMT for newborn infants is not recommended due to inconsistencies in results. Measuring temperature with TMT is not necessarily cost-effective. The most accurate method for measuring core temperature is through rectal temperatures. TMT may not be the preferred method for patients with otitis media due to potential inaccuracies caused by fluid behind the tympanic membrane.

Correct Answer: B

Rationale: When the body needs to lose heat, one of the mechanisms it employs is radiation. Radiation involves the transfer of heat from the body to the environment in the form of infrared waves. While metabolism, exercise, and food digestion contribute to heat production, they are not mechanisms for heat loss. Metabolism generates heat as a byproduct, exercise increases metabolic rate leading to heat production, and food digestion involves some heat generation, but these processes do not directly facilitate heat loss. Therefore, in the scenario where the patient is feeling cold, radiation is the primary mechanism for the body to lose excess heat and maintain a stable internal temperature.

Correct Answer: B

Rationale: When measuring body temperature, it is essential to consider factors that can influence it. The diurnal cycle, which refers to the body's natural temperature variations throughout a 24-hour period, can impact body temperature readings. Factors like exercise, age, and environment can also affect body temperature. Constipation does not directly influence body temperature. The 'nocturnal cycle' is not a recognized term in relation to body temperature. While a patient's emotional state can affect vital signs, it is not a primary factor in influencing body temperature measurements.