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A patient weighs 154 lbs. Convert this weight to kilograms. (1 kg = 2.205 lbs)   *answer in correct significant figures

A radio station broadcasts at a frequency of 100.3 MHz (megahertz). Calculate the wavelength of the radio waves in meters.    E=hcλ c=λ* vE = \frac{hc}{\lambda} h=6.626×10−34J⋅sh = 6.626 \times 10^{-34} J·s c=3.00×108m/sc = 3.00 \times 10^8 m/s 1MHz=1×106Hz * Final answer should be in correct significant figures and include proper unit. 

Which of the following best explains why helium is used in balloons instead of hydrogen?

A wheelchair with inadequate seat depth causes the patient’s thighs to be unsupported. This poor positioning MOST increases the risk for which cardiovascular complication?

A patient is able to perform a wheelchair-to-bed transfer safely but requires the PTA to stand close and provide verbal cues and occasional guarding to prevent loss of balance. Which level of assistance BEST describes this scenario?

A physical therapist assistant is measuring a patient’s thigh girth weekly during rehabilitation after a knee injury. What is the PRIMARY purpose of performing girth measurements in this context?

During a manual patient lift, which principle of body mechanics should the PTA MOST prioritize?

A patient who uses a wheelchair is transitioning to the bathroom independently. Which modification MOST improves safety?

A PTA is educating a patient’s family on home modifications for safety. For patients who occasionally need to transfer up a few steps, what is the minimum recommended tread depth to allow safe foot placement?

A patient sustained a hand injury during a fall and now presents with significant edema in the fingers and dorsum of the hand. Which of the following methods is considered the gold standard for quantifying this edema in comparison with the uninvolved extremity?