You are asked to take a person's heart rate at the popliteal pulse point. You will look for this pulse
on the posterior side of the knee
in the distal end of the lower leg
at the posterior side of the wrist
on the palmar side of the hand
The Correct Answer is A
A. On the posterior side of the knee: The popliteal pulse is located behind the knee in the popliteal fossa. It is often deeper and harder to palpate compared to other pulses, but it is the correct site when assessing circulation in the lower extremity.
B. In the distal end of the lower leg: The distal lower leg is where the posterior tibial and dorsalis pedis pulses are assessed. These are important for evaluating foot circulation but are not the same as the popliteal pulse.
C. At the posterior side of the wrist: The posterior wrist is where the radial pulse is palpated. This site is commonly used for routine pulse checks but is unrelated to the popliteal artery location.
D. On the palmar side of the hand: Pulses in the hand can be felt at sites such as the ulnar artery, but these are not associated with the popliteal region. This location is far from the knee and does not correspond to the popliteal pulse point.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. NaOH: Sodium hydroxide is an inorganic compound because it does not contain carbon-hydrogen bonds. It is a strong base used in many chemical processes but is not classified as organic.
B. NaCl: Sodium chloride is an ionic compound formed from sodium and chlorine ions. It lacks carbon altogether, making it an inorganic molecule rather than an organic one.
C. H2O: Water is vital for life and serves as a universal solvent, but it is a simple molecule without carbon. Since organic molecules require carbon, water is inorganic.
D. CH4: Methane (CH4) is an organic molecule because it consists of carbon bonded to hydrogen atoms. The presence of carbon-hydrogen bonds defines it as organic.
Correct Answer is A
Explanation
Resting membrane potential arises from the uneven distribution of ions, primarily sodium (Na⁺) and potassium (K⁺), across the plasma membrane. Potassium tends to leak out of the cell while sodium remains higher outside, creating a negative charge inside relative to the outside. This separation of charges generates electrical potential energy while the cell is at rest.
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