The nurse is evaluating a client who had a cardiac catheterization with a left antecubital insertion site. Which of the following pulses should the nurse palpate?
Radial pulse in the left arm
Radial pulse in the right arm
Brachial pulse in the left arm
Brachial pulse in the right arm
None
None
The Correct Answer is A
A. The radial pulse in the left arm can be palpated after a cardiac catheterization with a left antecubital insertion site. Although the focus is typically on the site of insertion and the brachial pulse, the radial pulse in the left arm can still provide useful information about circulation in that limb.
B. The radial pulse in the right arm is not pertinent because the catheterization was performed on the left side.
C. The brachial pulse in the left arm is indeed important to assess, but palpating the radial pulse in the left arm is also valid to check for circulation.
D. The brachial pulse in the right arm is not relevant in this scenario, as it does not relate to the site of catheterization.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Placing the client on his side is an essential action to take during a seizure, as it can prevent airway obstruction and aspiration. The client should be placed on his side, preferably in a lateral recumbent position, to allow saliva and secretions to drain from the mouth.
Holding the client's arms and legs from moving is not appropriate, as it can cause injury, increase agitation, or prolong the seizure. The client should be allowed to move freely during a seizure, but supported and guided away from hazards.
Placing the client back in bed is not necessary, as it can cause harm or delay care. The client should be left on the floor, unless it is unsafe or uncomfortable, and padded with pillows or blankets to protect from injury.
Inserting a tongue blade in the client's mouth is not advisable, as it can cause oral trauma, choking, or damage to the teeth. The client should not have anything inserted into his mouth during a seizure, as he cannot swallow or bite his tongue. The nurse should ensure that the client's airway is clear and patent.
Correct Answer is B
Explanation
The P wave is the first wave on the ECG strip and represents the electrical activity of the atria. It reflects the depolarization of the atrial myocardium, which is the process of changing the electrical charge of the cardiac cells from negative to positive, triggering a contraction. The P wave precedes the QRS complex, which represents ventricular depolarization, and the T wave, which represents ventricular repolarization.
The other options are not correct because:
a. Slow repolarization of ventricular Purkinje fibers. This statement is incorrect because it describes the U wave, which is a small and sometimes invisible wave that follows the T wave on the ECG strip. It reflects the repolarization of the ventricular Purkinje fibers, which are specialized cardiac cells that conduct electrical impulses to the ventricles. The U wave is more prominent in conditions that cause hypokalemia, such as diuretic use or vomiting.
c. Early ventricular repolarization. This statement is incorrect because it describes the ST segment, which is the flat line between the QRS complex and the T wave on the ECG strip. It reflects the early phase of ventricular repolarization, which is the process of restoring the electrical charge of the cardiac cells to negative after a contraction. The ST segment can be elevated or depressed in conditions that cause myocardial ischemia or injury, such as angina or myocardial infarction.
d. Ventricular depolarization. This statement is incorrect because it describes the QRS complex, which is the largest and most visible wave on the ECG strip. It reflects the depolarization of the ventricular myocardium, which triggers a ventricular contraction. The QRS complex follows the P wave and precedes the T wave on the ECG strip.
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