Which of the following factors does NOT determine the views of the EKG deflection?

The type of ECG machine used does not influence the views of the EKG deflection. The EKG deflections are primarily determined by the electrical activity of the heart and how this activity is captured by the electrodes placed on the body. The electrodes' positions (option A) are crucial as they dictate the angles at which the heart's electrical impulses are detected, thus affecting the resulting EKG waveform.

The direction of the cardiac impulse (option B) is also vital since it represents the path of electrical conduction through the heart, which directly influences the EKG's shape and amplitude. Additionally, the placement of the patient (option D) can impact the overall clarity and quality of the EKG readings, as body position can alter electrical activity distribution. Therefore, while options A, B, and D all play significant roles in shaping the EKG appearance, the type of ECG machine does not change the fundamental electrical signals generated by the heart.