when considering the structural organization of the human body which of the following is the basic unit of life
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1. When considering the structural organization of the human body, what is the basic unit of life?

Correct answer: D

Rationale: The basic unit of life is the cell. Cells are considered the fundamental unit of life because they are capable of carrying out all the processes necessary for life, such as growth, reproduction, responding to stimuli, and more. While chemicals, atoms, and molecules are essential components of cells and living organisms, they are not considered the basic unit of life. Chemicals are general substances, atoms are the smallest units of matter, and molecules are combinations of atoms. Therefore, the correct answer is cells, as they are the building blocks of all living organisms.

2. When assessing the pulse of a 6-year-old patient, the nurse notices that the heart rate varies with the respiratory cycle, speeding up at the peak of inspiration and slowing to normal with expiration. What action would the nurse take next?

Correct answer: B

Rationale: The correct action for the nurse to take next is to record this finding as normal. Sinus dysrhythmia, characterized by heart rate variation with the respiratory cycle, is commonly found in children and young adults. The heart rate speeds up at the peak of inspiration and slows to normal with expiration. This phenomenon is a normal variant and does not require any intervention. There is no need to notify the physician as this finding is within the expected range for this age group. Checking the child's blood pressure for variations with respiration or documenting the child as having bradycardia would not be appropriate in this case, as sinus dysrhythmia is a normal physiological response.

3. Mr. Thomas is a well-groomed 68-year-old male patient who had prostate surgery two days ago. He has an indwelling catheter and a urinary drainage bag. You have weighed him at 9 am each morning for 3 mornings in a row. Today, on the 4th day, his morning weight is 3 pounds more than it was the day before. Why could he have gained these 3 pounds in one day, on a 1000 calorie diet?

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.

4. You are taking care of 5 patients today. One of your patients wants water; another needs help walking to the bathroom; another just stated that they have chest pain; and another is crying because his daughter did not visit him today. Which patient care problem must you deal with first?

Correct answer: C

Rationale: The chest pain must be addressed immediately as it could indicate a serious condition like a heart attack. Treating chest pain is a top priority in healthcare settings due to the potential life-threatening nature of the symptom. Providing immediate attention to chest pain ensures prompt assessment, diagnosis, and intervention, which are crucial for patient safety and well-being. Addressing the other needs, such as providing water, assisting with bathroom needs, or emotional support, can follow once the urgent issue of chest pain has been managed. While the other patient concerns are important, the critical nature of chest pain requires immediate action to rule out severe cardiac events and provide appropriate care.

5. An 86-year-old client with decreased visual acuity who uses a cane for mobility requires fall prevention education. What should the nurse teach this client to reduce the risk of falling at home?

Correct answer: D

Rationale: To reduce the risk of falling at home for an elderly client with decreased visual acuity and using a cane for mobility, installing non-slip pads in the shower or bathtub is crucial. This measure helps prevent slips and falls in areas where water accumulation may occur. While taking off shoes and wearing socks may seem comfortable, it increases the risk of slipping. Limiting activities to the lower level of the home may restrict the client's independence and quality of life unnecessarily. Keeping a lamp near the door of every room may improve visibility but does not directly address the risk of falls associated with mobility and visual acuity issues.

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