Correct Answer: C

Rationale: The correct answer is counting the pulse for 15 seconds and multiplying the number by four. To accurately assess a patient's heart rate or pulse, it is crucial to count the pulse for a full minute. Counting for only 15 seconds and then multiplying by four may result in an inaccurate heart rate calculation. This approach could miss arrhythmias or intermittent pulsations that could be vital indicators of the patient's condition. Placing the index finger on the radial artery, which is located on the thumb side of the patient's wrist, is the correct technique for taking a pulse. Noting a pulse as 'weak' when the pulsation disappears upon adding pressure is a valid observation and not an error in itself. Therefore, the most common error in this scenario is incorrectly calculating the pulse rate by multiplying a 15-second count by four.

Correct Answer: C

Rationale: The correct answer is the axillary temperature of 98.6 degrees F. Afebrile means without a fever, and an axillary temperature, which is taken in the armpit, is considered normal at 98.6 degrees F. Choice A is incorrect as a rectal temperature of 100.9 degrees F indicates a fever. Choice B is incorrect as an oral temperature of 38 degrees C is also indicative of a fever. Choice D is incorrect as not all options are wrong; only choices A and B are incorrect for an afebrile child.

Correct Answer: B

Rationale: Stereotyping is defined as providing a generalization about a person based on their culture or characteristics. In this scenario, assuming that an elderly patient will have difficulty understanding medication directions solely based on their age is an act of stereotyping. The healthcare provider is attributing a generalized trait to the patient without considering individual differences. Prejudice, on the other hand, involves forming a negative opinion about someone based on their heritage or culture, which is not evident in this situation. Encoding refers to the process of converting information into a form that can be stored in memory, and rationalization involves justifying one's behavior or decisions with logical reasons, neither of which are applicable in this context.

Correct Answer: B

Rationale: The correct answer is that the weight gain may be due to the urinary drainage bag not being emptied today, while it was emptied on previous days. This scenario is common and can lead to an increase in weight that is not related to food intake. Choice A is incorrect because assuming visitors are sneaking junk food is speculative and not based on facts. Choice C is incorrect as there is no evidence to suggest the scale is broken. Choice D is incorrect because any unexplained weight gain should be investigated further, even if it seems insignificant at first.

Correct Answer: B

Rationale: Korotkoff sounds are the sounds that occur when blood flows in an artery that has been temporarily compressed during a blood pressure measurement. These sounds result from the vibration of blood against the artery walls as the pressure cuff is released. There are five distinct phases of Korotkoff sounds, which healthcare providers are trained to identify during blood pressure assessment. The correct answer, choice B, accurately describes the nature of Korotkoff sounds and how they are generated. Choices A, C, and D are incorrect because Korotkoff sounds are not specific to diastole, not limited to skilled cardiologists, and categorized into five phases, not six.