The nurse is using Chvostek sign to assess for hypocalcemia. Which statement correctly describes this test?
Tap the face just below and in front of the ear.
Inflate a blood pressure cuff around the upper arm for 4 minutes.
Apply pressure over the ulnar and radial arteries.
Forcefully dorsiflex the ankle when the knee is in an extended position.
The Correct Answer is A
A. Tap the face just below and in front of the ear: This is the correct technique for eliciting Chvostek’s sign, which involves tapping over the facial nerve. A positive sign (twitching of facial muscles) indicates hypocalcemia.
B. Inflate a blood pressure cuff around the upper arm for 4 minutes: This describes Trousseau’s sign, another test for hypocalcemia, where carpopedal spasm occurs due to ischemia.
C. Apply pressure over the ulnar and radial arteries: This describes Allen’s test, used to assess arterial blood flow, not calcium levels.
D. Forcefully dorsiflex the ankle when the knee is in an extended position: This describes Homan’s sign, which is used to assess for deep vein thrombosis (DVT), not hypocalcemia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","D","E"]
Explanation
A. Bradycardia: Vomiting and diarrhea usually lead to tachycardia (increased heart rate) as the body compensates for hypovolemia, not bradycardia (slow heart rate).
B. Pale Yellow Urine: Dehydration often causes the urine to become concentrated and dark yellow, not pale yellow.
C. Poor Skin Turgor: Poor skin turgor is a classic sign of dehydration caused by fluid loss.
D. Hypotension: Loss of fluid volume can result in hypotension due to reduced blood circulation.
E. Flat Neck Veins: Dehydration causes reduced venous return, leading to flat neck veins, particularly when lying down.
Correct Answer is ["50"]
Explanation
Flowrate(gtt/min) = Volume /Time× Dropfactor(gtt/mL)
Rate= 400ml /8hr ×60min/hr×60 gtt/mL
=400ml /480 × 60 gtt/mL
=50 gtt/min
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