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A nurse is assisting with a presentation at a senior center regarding age-related changes. Which of the following should the nurse include?
- A. Decreased muscle mass
- B. Thickened vertebral disks
- C. Decreased chest width
- D. Increased force of isometric contractions
Correct Answer: A
Rationale: The correct answer is A: Decreased muscle mass. With aging, there is a natural decline in muscle mass known as sarcopenia. The nurse should include this because it is a common age-related change that can affect strength and mobility in older adults. Decreased muscle mass can lead to frailty and increased risk of falls. Thickened vertebral disks (B) are not a typical age-related change; instead, they tend to degenerate and become thinner. Decreased chest width (C) is not a significant age-related change and may vary among individuals. Increased force of isometric contractions (D) is not a typical age-related change; in fact, muscle strength tends to decrease with age, leading to reduced force production.
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A nurse is preparing a client for magnetic resonance imaging (MRI). Which of the following statements should the nurse include when reinforcing teaching?
- A. You'll have to remove metal objects such as watches and body jewelry.
- B. Your exposure to radiation will be minimal.
- C. You will not be able to talk to the technician during the procedure.
- D. Unlike an x-ray, the MRI allows you to move around a bit.
Correct Answer: A
Rationale: The correct answer is A: You'll have to remove metal objects such as watches and body jewelry. This is important for MRI safety as the magnetic field can interact with metal objects, causing harm or image distortion. Removing metal ensures the client's safety during the procedure. Choice B is incorrect as MRI does not involve radiation exposure but magnetic fields. Choice C is incorrect as communication with the technician is usually possible through an intercom system. Choice D is incorrect as clients must remain still during an MRI to prevent image blurring.
A nurse is caring for a client who has hypertension and is afraid to take medication. Which of the following nursing responses uses reflection?
- A. You seem upset about your blood pressure.'
- B. What time do you take your medication?'
- C. How do you feel when you take the medication?'
- D. I understand your reluctance to use medication.'
Correct Answer: A
Rationale: Reflection restates the client's emotions, encouraging further discussion.
A nurse is caring for four clients who have drainage tubes. The nurse should identify the client who has which of the following tubes as being at risk for hypokalemia?
- A. An NG tube to suction
- B. An indwelling urinary catheter to gravity drainage
- C. A chest tube to water-seal drainage
- D. A nephrostomy tube to a drainage bag
Correct Answer: A
Rationale: NG suction removes gastric contents, leading to loss of potassium and increased risk of hypokalemia.
A nurse is reinforcing teaching with a client who is to collect stool at home for a fecal occult blood test (FOBT). Which of the following should the nurse instruct the client to avoid for at least 3 days before the test?
- A. Whole grain cereal
- B. Magnesium hydroxide
- C. Orange juice
- D. Acetaminophen
Correct Answer: B
Rationale: The correct answer is B: Magnesium hydroxide. This is because magnesium hydroxide, commonly found in antacids and laxatives, can cause false-positive results in a fecal occult blood test (FOBT) due to its chemical reaction with the test reagents. Instructing the client to avoid magnesium hydroxide for at least 3 days before the test ensures accurate results.
Incorrect choices:
A: Whole grain cereal - Whole grain cereal does not interfere with FOBT results.
C: Orange juice - Orange juice does not impact FOBT results.
D: Acetaminophen - Acetaminophen does not affect FOBT results.
Therefore, avoiding magnesium hydroxide is crucial to obtaining reliable results in the FOBT.
A nurse is preparing to measure a client's oxygen saturation and notes edema of the client's hands and thickened toenails. The nurse should apply the pulse oximeter probe to which of the following locations?
- A. Finger
- B. Earlobe
- C. Toe
- D. Skin fold
Correct Answer: B
Rationale: The correct answer is B: Earlobe. The nurse should apply the pulse oximeter probe to the earlobe in this scenario because the client's hands have edema, making finger placement less reliable for accurate readings. Thickened toenails also suggest poor circulation in the toes, making toe placement less accurate. The earlobe provides a good peripheral site for accurate oxygen saturation measurement, as it has good blood flow and is less affected by edema or circulation issues. Placing the probe on the skin fold may lead to erroneous readings due to variations in skin thickness and perfusion. Therefore, the earlobe is the most suitable and reliable location for obtaining an accurate oxygen saturation measurement in this situation.