A patient's heart rate increased from 94 to 164 beats/min. What will the nurse expect as a result?
Decrease in hemoglobin level
Increase in diastolic filling time
Increase in stroke volume
Decrease in cardiac output
The Correct Answer is D
A. An increase in heart rate does not directly affect hemoglobin levels; this option is incorrect.
B. A higher heart rate decreases diastolic filling time, as there is less time for the heart to fill between beats, which can lead to reduced stroke volume.
C. An increased heart rate does not inherently increase stroke volume; in fact, at very high rates, stroke volume can decrease due to reduced filling time.
D. The significant increase in heart rate to 164 beats/min can lead to decreased cardiac output due to compromised diastolic filling and reduced stroke volume.
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Correct Answer is C
Explanation
A. While metabolic acidosis is a potential concern for some diabetic conditions, avoiding acidic foods is not a common dietary guideline for managing diabetes.
B. Including dairy can contribute to calcium intake but does not directly impact diabetes management.
C. Staying hydrated is essential for overall health and helps regulate blood sugar levels, making it an appropriate dietary recommendation for this patient.
D. Since the patient does not require insulin, strict carbohydrate reduction may not be necessary, making this option less relevant.
Correct Answer is A
Explanation
A. The tuberculin test is administered intradermally, and the needle should be inserted at a 15-degree angle to ensure the medication is delivered just under the surface of the skin.
B. A 90-degree angle is used for intramuscular injections, not for intradermal tests like the tuberculin test.
C. A 30-degree angle is commonly used for subcutaneous injections and is too deep for an intradermal injection.
D. A 45-degree angle is also used for subcutaneous injections but is not suitable for intradermal injections.