How do you select a needle based on what type of medication you are administering? For example, I know for a PCN injection you want a larger gauge (like 18?) because the solution is very thick. But what about other medications? This is something that I was never taught in nursing school and I know that some clinical instructors like to ask those questions. I've checked my books and my drug books and I haven't found anything. Is there some sort of website or other book that I can look into?
Also, what justifies giving and holding antihypertensive medications? My patient this week was on amlodipine, metoprolol, lisinopril and was also on hydrochlorothiazide. Her BP prior to giving those drugs was 103/58. I told my primary nurse and we looked at her BP over the past few days and it has been close to the 103/58, so she OK'ed it, signed off on the MAR stating that I checked with her prior to giving those medications and said if something were to happen she would assume responsibility. I gave them, no problems. But still, 103/58...isn't that kind of risky when you're on four different medications that will affect your BP? I know sometimes on the MAR it will say things like "HOLD if SBP < 110" but there were no notes by any of these medications on the MAR.
My patient was admitted for abd pain, ascites, abd mass, anemia; hx of HTN, CAD, cardiac stent.