We used to have our doctor's home number and on occasion, he came to our house. This was also a time when doctors were exalted as gods and nobody wants to interrupt god's golf game for trivial matters. The fact of the matter is, medicine is a 24/7 business and though I was too young to remember my being bundled up in the middle of the night to meet our doctor at the hospital, I remember my sister's croup and the dozens of times she got the late night ride.
CRMS or Cystic fibrosis Related Metabolic Syndrome is a wait and watch group for developing CF issues. In other words, a CRMS diagnosis could become a CF diagnosis depending on what health issues develop and their severity. Anybody in the position of raising a CRMS child is looking for developing issues, by definition. By starting with the more conservative CRMS diagnosis, a lot of assumed problems like pancreatic insufficiency aren't blindly treated. But, CRMS doesn't have a timer attached to it. If a child is showing CF issues, they are treated promptly and aggressively.
In early child development, the point when the lungs mature could coincide with the development of CF pulmonary issues. Strictly from a genetic standpoint, lauryn.tube's daughter easily could have been diagnosed with CF instead. It ultimately comes down to the health issues of your child. Her genetics may or may not present CF but it sounds like issues are surfacing. I don't know exactly why your doctor chose CRMS over CF. It could be adherence to classic CF genetics where two identical mutations known to cause CF are required for a diagnosis. Or your child didn't immediately develop classic CF issues, or they were "mild".
It may sound like punishing your doctor for her/his diagnosis but CRMS/CF in an infant is going to be a high maintanence endeavor and neither your doctor or you can predict the future. A CRMS diagnosis could change to a CF diagnosis at anytime or never. And infants develop so fast that you can almost watch changes going on before you.
This accelerated stage is easy to overreact and react too slowly to problems. Trying to second guess your child's doctor just introduces a worry that isn't needed, by anybody. I may be part of a very small minority having studied CF prior to being diagnosed with it. It is difficult enough to observe and diagnose gas verses colic in a baby who hasn't learned to talk. Issues as simple as snot become the subject of considerable and protracted discussion, for good reason.
When do you call your child's doctor? My best answer starts with acquiring some home medical instruments. A thermometer is vital and usually needed to answer the doctor's first question. Always measure the left ear if an ear thermometer is used. Measure both ears at first to make certain your baby is typical. The left side is warmer above the heart and usually measures a fever sooner. An ear infection can be indicated if you know what's typical for each ear and you're not getting typical values.
In all cases, measure of temperature will give you and the doctor important data and a sense of a good reason to call if she's running a fever. Her doctor will suggest a minimum fever for concern. A Pulse-Ox, the thing that the nurse puts on her finger, is essential (for CF or CRMS) for measuring her oxygenation and pulse rate. Oxygen levels again can be worked out with the doctor. Generally speaking, 92% and lower is worthy of concern for a healthy person. Pulse rate is a good indicator of how much stress your little patient is in. Pulse rates can be high with the stress of fighting infection. It can drop if the pain level shoots up. In this case the slower pulse is heart pound, a strong beat. Low or high pulse that's thready and soft or weak is urgent.
This segues into a sphygmomanometer or a BP cuff. To be honest I've never seen a cuff for infants outside of a doctors office. At 64 and having Parkinson's disease on top of CF, a cuff is important and useful. I suggest it for the long term record keeping. If she needed monitoring, her doctor already would have prescribed a cuff. The bouncing bar graph on her Pulse-Ox can tell almost as much.
By studying the bar graph, it goes up quickly and drops to a certain level before bouncing up again. The highest bar reached is analogous to the systolic blood pressure and the lower bar reached is diastolic pressure or the 70 in 120/70. I have a harmless "murmer" that I can see in the rhythm of the Pulse-ox bar graph. On occasion I have a double beat or extra systole. When it occurs, the bar graph peaks and begins to drop, peaks again and drops to the normal diastolic level. What I am saying is a thermometer and a Pulse-ox are primary diagnostic tools for your doctor and for you.
Being prepared with your daughter's vitals will validate your reason for calling and inform the doctor with essential data. Put on your doctor hat and write down the observations that have you concerned. The reason for calling a doctor is concern. Sometimes it will be gas or it could be a life threatening blockage, in either case you need to call. If you're organized and concise, the doctor can't fault you and most likely will appreciate it.
You may need to sit down with your daughter's doctor and define bright lines like at what temperature of fever is a point of concern. Hydration, dehydration and growth all fall into CRMS and each one is a measurable symptom. Maybe discussing the topic of when to call will help. Just asking the question will esuage most doctors fearing you're going to hound them. It's not the end of the world for a doctor being called for something that wasn't an emergency. Fairly quickly certain emergencies will reappear and the solutions repeated.
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LL