I have blood pressure down pat. I get accurate readings every time--as long as I'm using a single-person stethoscope. I cannot, for the life of me, hear anything on the two person stethoscopes. I'm being tested on this skill in a week with the two-person ones and there's just so much background noise getting in--even when I make someone use the other earpieces to block them--that I can't hear. I've got the earpieces facing forwards. I've settled and resettled the earpieces in. I've checked to make sure I've got the scope listening on the right side (diaphragm, not bell). I can hear on the cheap single-headed stethoscopes if I try really hard. I can hear on my Littmann. I can hear on my classmate's MDF. I just can't hear anything through the double ones. My theory is that the shape of the hard plastic earpieces isn't settling right into my ear. I can't swap out the earpieces to softer ones.
Does anyone have tips to overcome this? A way to somehow get a better 'seal' with a hard plastic tip?
I know this skill, no problem. It's not nerves from being observed. I just can't hear anything through these scopes and I'm really worried that's going to send me for remediation even though I definitely know the skill.