the first step in the scientific method is to

ATI RN

ATI Nutrition Practice A

1. What is the first step in the scientific method?

A. Conduct an experiment
B. Make an observation and ask a question
C. Formulate a hypothesis
D. Reach a consensus

Correct answer: B

Rationale: The first step in the scientific method is to make an observation and ask a question. This is because the scientific method is a systematic process of investigation that begins with observing a phenomenon or asking a question about it. This is followed by formulating a hypothesis (Choice C), designing and conducting an experiment to test the hypothesis (Choice A), and analyzing the results to reach a consensus or conclusion (Choice D). Therefore, choices A, C, and D are incorrect as they represent steps that occur after the initial observation and question.

2. Which of the following categories identifies the focus of community/public health nursing practice?

A. Promoting and maintaining the health of populations and preventing and minimizing the progress of disease
B. Rehabilitation and restorative services
C. Adaptation of hospital care to the home environment
D. Hospice care delivery

Correct answer: C

Rationale: Effective nursing care involves comprehensive assessments that address all aspects of a patient's condition, ensuring that interventions are appropriately targeted and outcomes are optimized.

3. A nurse is planning care for a toddler who has burns over 50% total body surface area. Which of the following actions should the nurse include in the plan of care?

A. Administer enteral feedings
B. Limit intake of vitamin C
C. Limit dietary protein
D. Administer insulin prior to meals

Correct answer: A

Rationale: Administering enteral feedings is crucial for ensuring adequate nutrition and supporting healing in toddlers with extensive burns. Burns over 50% total body surface area can lead to increased metabolic demands, making it essential to provide nutrition through enteral feedings to meet the child's needs for healing and recovery. Limiting intake of vitamin C or dietary protein would be detrimental in this scenario as the child requires increased amounts of nutrients to support healing. Administering insulin prior to meals is not indicated in this case as the priority is to provide adequate nutrition to promote healing.

4. Legally, Patients chart are:

A. Owned by the government since it is a legal document
B. Owned by the doctor in charge and should be kept from the administrator for whatever reason
C. Owned by the hospital and should not be given to anyone who request it other than the doctor in charge
D. Owned by the patient and should be given by the nurse to the client as requested

Correct answer: C

5. The purpose of chest percussion and vibration is to loosen secretions in the lungs. The difference between the procedures is:

A. Percussion uses only one hand, while vibration uses both hands
B. Percussion delivers cushioned blows to the chest with cupped palms, while vibration gently shakes secretions loose
C. In both percussion and vibration, the hands are not on top of each other, and hand action is not in tune with the client's breath
D. Percussion slaps the chest to loosen secretions, while vibration shakes the secretions along with the inhalation

Correct answer: D

Rationale: Chest percussion involves the use of rhythmic tapping to dislodge mucus from the lungs, facilitating its movement toward the larger airways where it can be expelled. This technique is particularly important in conditions where mucus retention is a significant risk factor for infection. The key difference between chest percussion and vibration is that percussion involves slapping the chest to loosen secretions, while vibration involves shaking the secretions along with the inhalation, aiding in moving the loosened secretions upwards for easier removal. Choices A, B, and C do not accurately describe the main difference between chest percussion and vibration, making them incorrect.